chachan chachan chachan chachan
chachan chachan chachan chachan !
t̠ʃ a t̠ʃ a n WORD_BOUNDARY t̠ʃ a t̠ʃ a n WORD_BOUNDARY t̠ʃ a t̠ʃ a n WORD_BOUNDARY t̠ʃ a t̠ʃ a n WORD_BOUNDARY
c h a c h a n WORD_BOUNDARY c h a c h a n WORD_BOUNDARY c h a c h a n WORD_BOUNDARY c h a c h a n WORD_BOUNDARY ! WORD_BOUNDARY