There is some strings like:
.texta texti(
.textb textj(
textc textk(
text
Why the result has “exta”, “extb”?
The target is to get “textc”, excludes words started with “.” or “,”.”
If the pattern is s*(w+)s+(w+)s*(, the result is “texta”, “textb” and “textc”
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