diff --git a/choicedefine.go b/choicedefine.go
index 4e621f2..feb633f 100644
--- a/choicedefine.go
+++ b/choicedefine.go
@@ -227,6 +227,15 @@ func (b *choiceBuilder) generate(w io.Writer, done map[string]bool) error {
 		fprintf("name: \"%s\",", b.name)
 	}
 
+	if len(b.generalizations) > 0 {
+		fprintf("generalizations: []int{")
+		for i := range b.generalizations {
+			fprintf("%d,", b.generalizations[i])
+		}
+
+		fprintf("},")
+	}
+
 	fprintf("};")
 
 	if len(b.options) > 0 {
diff --git a/self/self.go b/self/self.go
index 331255f..991ed08 100644
--- a/self/self.go
+++ b/self/self.go
@@ -1058,33 +1058,33 @@ func Parse(r io.Reader) (*Node, error) {
 	p188.items = []parser{&p186, &p187, &p186}
 	var b188 = sequenceBuilder{id: 188, commit: 32, name: "syntax", ranges: [][]int{{0, -1}, {1, 1}, {0, -1}}}
 	var b186 = choiceBuilder{id: 186, commit: 2}
-	var b185 = choiceBuilder{id: 185, commit: 70}
-	var b15 = choiceBuilder{id: 15, commit: 66}
-	var b2 = sequenceBuilder{id: 2, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b185 = choiceBuilder{id: 185, commit: 70, generalizations: []int{186}}
+	var b15 = choiceBuilder{id: 15, commit: 66, generalizations: []int{185, 186}}
+	var b2 = sequenceBuilder{id: 2, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{15, 185, 186}}
 	var b1 = charBuilder{}
 	b2.items = []builder{&b1}
-	var b4 = sequenceBuilder{id: 4, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b4 = sequenceBuilder{id: 4, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{15, 185, 186}}
 	var b3 = charBuilder{}
 	b4.items = []builder{&b3}
-	var b6 = sequenceBuilder{id: 6, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b6 = sequenceBuilder{id: 6, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{15, 185, 186}}
 	var b5 = charBuilder{}
 	b6.items = []builder{&b5}
-	var b8 = sequenceBuilder{id: 8, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b8 = sequenceBuilder{id: 8, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{15, 185, 186}}
 	var b7 = charBuilder{}
 	b8.items = []builder{&b7}
-	var b10 = sequenceBuilder{id: 10, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b10 = sequenceBuilder{id: 10, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{15, 185, 186}}
 	var b9 = charBuilder{}
 	b10.items = []builder{&b9}
-	var b12 = sequenceBuilder{id: 12, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b12 = sequenceBuilder{id: 12, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{15, 185, 186}}
 	var b11 = charBuilder{}
 	b12.items = []builder{&b11}
-	var b14 = sequenceBuilder{id: 14, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b14 = sequenceBuilder{id: 14, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{15, 185, 186}}
 	var b13 = charBuilder{}
 	b14.items = []builder{&b13}
 	b15.options = []builder{&b2, &b4, &b6, &b8, &b10, &b12, &b14}
-	var b54 = sequenceBuilder{id: 54, commit: 72, name: "comment", ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}}}
+	var b54 = sequenceBuilder{id: 54, commit: 72, name: "comment", ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}}, generalizations: []int{185, 186}}
 	var b37 = choiceBuilder{id: 37, commit: 74}
-	var b36 = sequenceBuilder{id: 36, commit: 74, ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}}}
+	var b36 = sequenceBuilder{id: 36, commit: 74, ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}}, generalizations: []int{37}}
 	var b33 = sequenceBuilder{id: 33, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}}
 	var b31 = charBuilder{}
 	var b32 = charBuilder{}
@@ -1093,13 +1093,13 @@ func Parse(r io.Reader) (*Node, error) {
 	var b34 = charBuilder{}
 	b35.items = []builder{&b34}
 	b36.items = []builder{&b33, &b35}
-	var b30 = sequenceBuilder{id: 30, commit: 74, ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {1, 1}, {0, -1}, {1, 1}}}
+	var b30 = sequenceBuilder{id: 30, commit: 74, ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {1, 1}, {0, -1}, {1, 1}}, generalizations: []int{37}}
 	var b18 = sequenceBuilder{id: 18, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}}
 	var b16 = charBuilder{}
 	var b17 = charBuilder{}
 	b18.items = []builder{&b16, &b17}
 	var b26 = choiceBuilder{id: 26, commit: 10}
-	var b23 = sequenceBuilder{id: 23, commit: 10, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}}
+	var b23 = sequenceBuilder{id: 23, commit: 10, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}, generalizations: []int{26}}
 	var b20 = sequenceBuilder{id: 20, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b19 = charBuilder{}
 	b20.items = []builder{&b19}
@@ -1107,7 +1107,7 @@ func Parse(r io.Reader) (*Node, error) {
 	var b21 = charBuilder{}
 	b22.items = []builder{&b21}
 	b23.items = []builder{&b20, &b22}
-	var b25 = sequenceBuilder{id: 25, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b25 = sequenceBuilder{id: 25, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{26}}
 	var b24 = charBuilder{}
 	b25.items = []builder{&b24}
 	b26.options = []builder{&b23, &b25}
@@ -1119,22 +1119,22 @@ func Parse(r io.Reader) (*Node, error) {
 	b37.options = []builder{&b36, &b30}
 	var b53 = sequenceBuilder{id: 53, commit: 10, ranges: [][]int{{0, -1}, {0, 1}, {0, -1}, {1, 1}, {0, -1}, {0, 1}, {0, -1}, {1, 1}}}
 	var b50 = choiceBuilder{id: 50, commit: 74}
-	var b39 = sequenceBuilder{id: 39, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b39 = sequenceBuilder{id: 39, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{50}}
 	var b38 = charBuilder{}
 	b39.items = []builder{&b38}
-	var b41 = sequenceBuilder{id: 41, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b41 = sequenceBuilder{id: 41, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{50}}
 	var b40 = charBuilder{}
 	b41.items = []builder{&b40}
-	var b43 = sequenceBuilder{id: 43, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b43 = sequenceBuilder{id: 43, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{50}}
 	var b42 = charBuilder{}
 	b43.items = []builder{&b42}
-	var b45 = sequenceBuilder{id: 45, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b45 = sequenceBuilder{id: 45, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{50}}
 	var b44 = charBuilder{}
 	b45.items = []builder{&b44}
-	var b47 = sequenceBuilder{id: 47, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b47 = sequenceBuilder{id: 47, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{50}}
 	var b46 = charBuilder{}
 	b47.items = []builder{&b46}
-	var b49 = sequenceBuilder{id: 49, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b49 = sequenceBuilder{id: 49, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{50}}
 	var b48 = charBuilder{}
 	b49.items = []builder{&b48}
 	b50.options = []builder{&b39, &b41, &b43, &b45, &b47, &b49}
@@ -1156,7 +1156,7 @@ func Parse(r io.Reader) (*Node, error) {
 	var b176 = sequenceBuilder{id: 176, commit: 66, ranges: [][]int{{1, 1}, {0, 1}}}
 	var b169 = sequenceBuilder{id: 169, commit: 64, name: "definition", ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}, {1, 1}}}
 	var b166 = sequenceBuilder{id: 166, commit: 74, ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}}}
-	var b92 = sequenceBuilder{id: 92, commit: 72, name: "symbol", ranges: [][]int{{1, -1}, {1, -1}}}
+	var b92 = sequenceBuilder{id: 92, commit: 72, name: "symbol", ranges: [][]int{{1, -1}, {1, -1}}, generalizations: []int{133, 123, 127}}
 	var b91 = sequenceBuilder{id: 91, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b90 = charBuilder{}
 	b91.items = []builder{&b90}
@@ -1166,24 +1166,24 @@ func Parse(r io.Reader) (*Node, error) {
 	var b163 = charBuilder{}
 	b164.items = []builder{&b163}
 	var b162 = choiceBuilder{id: 162, commit: 66}
-	var b139 = sequenceBuilder{id: 139, commit: 72, name: "alias", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}}
+	var b139 = sequenceBuilder{id: 139, commit: 72, name: "alias", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}, generalizations: []int{162}}
 	var b134 = charBuilder{}
 	var b135 = charBuilder{}
 	var b136 = charBuilder{}
 	var b137 = charBuilder{}
 	var b138 = charBuilder{}
 	b139.items = []builder{&b134, &b135, &b136, &b137, &b138}
-	var b142 = sequenceBuilder{id: 142, commit: 72, name: "ws", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}}
+	var b142 = sequenceBuilder{id: 142, commit: 72, name: "ws", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}, generalizations: []int{162}}
 	var b140 = charBuilder{}
 	var b141 = charBuilder{}
 	b142.items = []builder{&b140, &b141}
-	var b147 = sequenceBuilder{id: 147, commit: 72, name: "nows", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}}
+	var b147 = sequenceBuilder{id: 147, commit: 72, name: "nows", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}, generalizations: []int{162}}
 	var b143 = charBuilder{}
 	var b144 = charBuilder{}
 	var b145 = charBuilder{}
 	var b146 = charBuilder{}
 	b147.items = []builder{&b143, &b144, &b145, &b146}
-	var b156 = sequenceBuilder{id: 156, commit: 72, name: "failpass", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}}
+	var b156 = sequenceBuilder{id: 156, commit: 72, name: "failpass", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}, generalizations: []int{162}}
 	var b148 = charBuilder{}
 	var b149 = charBuilder{}
 	var b150 = charBuilder{}
@@ -1193,7 +1193,7 @@ func Parse(r io.Reader) (*Node, error) {
 	var b154 = charBuilder{}
 	var b155 = charBuilder{}
 	b156.items = []builder{&b148, &b149, &b150, &b151, &b152, &b153, &b154, &b155}
-	var b161 = sequenceBuilder{id: 161, commit: 72, name: "root", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}}
+	var b161 = sequenceBuilder{id: 161, commit: 72, name: "root", allChars: true, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}, generalizations: []int{162}}
 	var b157 = charBuilder{}
 	var b158 = charBuilder{}
 	var b159 = charBuilder{}
@@ -1206,11 +1206,11 @@ func Parse(r io.Reader) (*Node, error) {
 	var b167 = charBuilder{}
 	b168.items = []builder{&b167}
 	var b133 = choiceBuilder{id: 133, commit: 66}
-	var b89 = choiceBuilder{id: 89, commit: 66}
-	var b56 = sequenceBuilder{id: 56, commit: 72, name: "any-char", allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b89 = choiceBuilder{id: 89, commit: 66, generalizations: []int{133, 123, 127}}
+	var b56 = sequenceBuilder{id: 56, commit: 72, name: "any-char", allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{89, 133, 123, 127}}
 	var b55 = charBuilder{}
 	b56.items = []builder{&b55}
-	var b75 = sequenceBuilder{id: 75, commit: 72, name: "char-class", ranges: [][]int{{1, 1}, {0, 1}, {0, -1}, {1, 1}, {1, 1}, {0, 1}, {0, -1}, {1, 1}}}
+	var b75 = sequenceBuilder{id: 75, commit: 72, name: "char-class", ranges: [][]int{{1, 1}, {0, 1}, {0, -1}, {1, 1}, {1, 1}, {0, 1}, {0, -1}, {1, 1}}, generalizations: []int{89, 133, 123, 127}}
 	var b71 = sequenceBuilder{id: 71, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b70 = charBuilder{}
 	b71.items = []builder{&b70}
@@ -1218,11 +1218,11 @@ func Parse(r io.Reader) (*Node, error) {
 	var b57 = charBuilder{}
 	b58.items = []builder{&b57}
 	var b72 = choiceBuilder{id: 72, commit: 10}
-	var b66 = choiceBuilder{id: 66, commit: 72, name: "class-char"}
-	var b60 = sequenceBuilder{id: 60, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b66 = choiceBuilder{id: 66, commit: 72, name: "class-char", generalizations: []int{72}}
+	var b60 = sequenceBuilder{id: 60, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{66, 72}}
 	var b59 = charBuilder{}
 	b60.items = []builder{&b59}
-	var b65 = sequenceBuilder{id: 65, commit: 10, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}}
+	var b65 = sequenceBuilder{id: 65, commit: 10, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}, generalizations: []int{66, 72}}
 	var b62 = sequenceBuilder{id: 62, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b61 = charBuilder{}
 	b62.items = []builder{&b61}
@@ -1231,7 +1231,7 @@ func Parse(r io.Reader) (*Node, error) {
 	b64.items = []builder{&b63}
 	b65.items = []builder{&b62, &b64}
 	b66.options = []builder{&b60, &b65}
-	var b69 = sequenceBuilder{id: 69, commit: 72, name: "char-range", ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}}
+	var b69 = sequenceBuilder{id: 69, commit: 72, name: "char-range", ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}, {1, 1}}, generalizations: []int{72}}
 	var b68 = sequenceBuilder{id: 68, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b67 = charBuilder{}
 	b68.items = []builder{&b67}
@@ -1241,15 +1241,15 @@ func Parse(r io.Reader) (*Node, error) {
 	var b73 = charBuilder{}
 	b74.items = []builder{&b73}
 	b75.items = []builder{&b71, &b58, &b72, &b74}
-	var b88 = sequenceBuilder{id: 88, commit: 72, name: "char-sequence", ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {1, 1}, {0, -1}, {1, 1}}}
+	var b88 = sequenceBuilder{id: 88, commit: 72, name: "char-sequence", ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {1, 1}, {0, -1}, {1, 1}}, generalizations: []int{89, 133, 123, 127}}
 	var b85 = sequenceBuilder{id: 85, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b84 = charBuilder{}
 	b85.items = []builder{&b84}
 	var b83 = choiceBuilder{id: 83, commit: 72, name: "sequence-char"}
-	var b77 = sequenceBuilder{id: 77, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b77 = sequenceBuilder{id: 77, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{83}}
 	var b76 = charBuilder{}
 	b77.items = []builder{&b76}
-	var b82 = sequenceBuilder{id: 82, commit: 10, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}}
+	var b82 = sequenceBuilder{id: 82, commit: 10, ranges: [][]int{{1, 1}, {1, 1}, {1, 1}, {1, 1}}, generalizations: []int{83}}
 	var b79 = sequenceBuilder{id: 79, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b78 = charBuilder{}
 	b79.items = []builder{&b78}
@@ -1263,7 +1263,7 @@ func Parse(r io.Reader) (*Node, error) {
 	b87.items = []builder{&b86}
 	b88.items = []builder{&b85, &b83, &b87}
 	b89.options = []builder{&b56, &b75, &b88}
-	var b97 = sequenceBuilder{id: 97, commit: 66, ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}, {1, 1}}}
+	var b97 = sequenceBuilder{id: 97, commit: 66, ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}, {1, 1}}, generalizations: []int{133, 123, 127}}
 	var b94 = sequenceBuilder{id: 94, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b93 = charBuilder{}
 	b94.items = []builder{&b93}
@@ -1271,12 +1271,12 @@ func Parse(r io.Reader) (*Node, error) {
 	var b95 = charBuilder{}
 	b96.items = []builder{&b95}
 	b97.items = []builder{&b94, &b186, &b133, &b186, &b96}
-	var b126 = sequenceBuilder{id: 126, commit: 64, name: "sequence", ranges: [][]int{{1, 1}, {0, -1}}}
+	var b126 = sequenceBuilder{id: 126, commit: 64, name: "sequence", ranges: [][]int{{1, 1}, {0, -1}}, generalizations: []int{133, 127}}
 	var b124 = sequenceBuilder{id: 124, commit: 72, name: "item", ranges: [][]int{{1, 1}, {0, 1}, {1, 1}, {0, 1}}}
 	var b123 = choiceBuilder{id: 123, commit: 10}
 	b123.options = []builder{&b89, &b92, &b97}
 	var b122 = choiceBuilder{id: 122, commit: 66}
-	var b106 = sequenceBuilder{id: 106, commit: 64, name: "count-quantifier", ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}, {1, 1}}}
+	var b106 = sequenceBuilder{id: 106, commit: 64, name: "count-quantifier", ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}, {1, 1}}, generalizations: []int{122}}
 	var b103 = sequenceBuilder{id: 103, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b102 = charBuilder{}
 	b103.items = []builder{&b102}
@@ -1291,7 +1291,7 @@ func Parse(r io.Reader) (*Node, error) {
 	var b104 = charBuilder{}
 	b105.items = []builder{&b104}
 	b106.items = []builder{&b103, &b186, &b101, &b186, &b105}
-	var b115 = sequenceBuilder{id: 115, commit: 64, name: "range-quantifier", ranges: [][]int{{1, 1}, {0, -1}, {0, 1}, {0, -1}, {1, 1}, {0, -1}, {0, 1}, {0, -1}, {1, 1}}}
+	var b115 = sequenceBuilder{id: 115, commit: 64, name: "range-quantifier", ranges: [][]int{{1, 1}, {0, -1}, {0, 1}, {0, -1}, {1, 1}, {0, -1}, {0, 1}, {0, -1}, {1, 1}}, generalizations: []int{122}}
 	var b110 = sequenceBuilder{id: 110, commit: 10, allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
 	var b109 = charBuilder{}
 	b110.items = []builder{&b109}
@@ -1306,13 +1306,13 @@ func Parse(r io.Reader) (*Node, error) {
 	var b113 = charBuilder{}
 	b114.items = []builder{&b113}
 	b115.items = []builder{&b110, &b186, &b107, &b186, &b112, &b186, &b108, &b186, &b114}
-	var b117 = sequenceBuilder{id: 117, commit: 72, name: "one-or-more", allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b117 = sequenceBuilder{id: 117, commit: 72, name: "one-or-more", allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{122}}
 	var b116 = charBuilder{}
 	b117.items = []builder{&b116}
-	var b119 = sequenceBuilder{id: 119, commit: 72, name: "zero-or-more", allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b119 = sequenceBuilder{id: 119, commit: 72, name: "zero-or-more", allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{122}}
 	var b118 = charBuilder{}
 	b119.items = []builder{&b118}
-	var b121 = sequenceBuilder{id: 121, commit: 72, name: "zero-or-one", allChars: true, ranges: [][]int{{1, 1}, {1, 1}}}
+	var b121 = sequenceBuilder{id: 121, commit: 72, name: "zero-or-one", allChars: true, ranges: [][]int{{1, 1}, {1, 1}}, generalizations: []int{122}}
 	var b120 = charBuilder{}
 	b121.items = []builder{&b120}
 	b122.options = []builder{&b106, &b115, &b117, &b119, &b121}
@@ -1320,7 +1320,7 @@ func Parse(r io.Reader) (*Node, error) {
 	var b125 = sequenceBuilder{id: 125, commit: 2, ranges: [][]int{{0, -1}, {1, 1}}}
 	b125.items = []builder{&b186, &b124}
 	b126.items = []builder{&b124, &b125}
-	var b132 = sequenceBuilder{id: 132, commit: 64, name: "choice", ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}}}
+	var b132 = sequenceBuilder{id: 132, commit: 64, name: "choice", ranges: [][]int{{1, 1}, {0, -1}, {1, 1}, {0, -1}}, generalizations: []int{133}}
 	var b127 = choiceBuilder{id: 127, commit: 66}
 	b127.options = []builder{&b89, &b92, &b97, &b126}
 	var b130 = sequenceBuilder{id: 130, commit: 2, ranges: [][]int{{1, 1}, {0, -1}, {1, 1}}}
diff --git a/sequencedefine.go b/sequencedefine.go
index 9b84748..93fe0a3 100644
--- a/sequencedefine.go
+++ b/sequencedefine.go
@@ -394,6 +394,15 @@ func (b *sequenceBuilder) generate(w io.Writer, done map[string]bool) error {
 		fprintf("},")
 	}
 
+	if len(b.generalizations) > 0 {
+		fprintf("generalizations: []int{")
+		for i := range b.generalizations {
+			fprintf("%d,", b.generalizations[i])
+		}
+
+		fprintf("},")
+	}
+
 	fprintf("};")
 
 	if len(b.items) > 0 {