tch tch tch tch
tch tch tch tch .
t t̠ʃ WORD_BOUNDARY t t̠ʃ WORD_BOUNDARY t t̠ʃ WORD_BOUNDARY t t̠ʃ WORD_BOUNDARY
t c h WORD_BOUNDARY t c h WORD_BOUNDARY t c h WORD_BOUNDARY t c h WORD_BOUNDARY . WORD_BOUNDARY