aaa mps aammmm abbbbbp
aaa mps aammmm abbbbbp .
aː a WORD_BOUNDARY e m m p e eː e s s WORD_BOUNDARY aː m m m m WORD_BOUNDARY a b b b b b p WORD_BOUNDARY
a a a WORD_BOUNDARY m p s WORD_BOUNDARY a a m m m m WORD_BOUNDARY a b b b b b p WORD_BOUNDARY