diff --git a/_probe/ambiguity.txt b/_probe/ambiguity.txt
new file mode 100644
index 0000000..6ccf80b
--- /dev/null
+++ b/_probe/ambiguity.txt
@@ -0,0 +1,16 @@
+P01 fullwidth comma after ascii: value，next
+P02 fullwidth comma between cjk: 值，下
+P03 fullwidth colon after ascii: key：value
+P04 fullwidth colon between cjk: 键：值
+P05 fullwidth semicolon after ascii: a；b
+P06 fullwidth semicolon between cjk: 甲；乙
+P07 fullwidth question after ascii: ok？
+P08 fullwidth question between cjk: 好？吧
+P09 fullwidth exclam after ascii: ok！
+P10 fullwidth lparen pair ascii inside: x（API 29）y
+P11 fullwidth lparen pair cjk inside: 值（括号）下
+P12 fullwidth paren pair with ascii right after close: 地址（默认 http://127.0.0.1:3000），后
+P13 ascii paren pair: x(API 29)y
+P14 ascii then fullwidth comma: value，下
+P15 fullwidth dot after ascii: ok。
+P16 fullwidth ideographic comma after ascii: a、b