ca ca ca ca ca
ca ca ca ca ca .
t̠ʃ a WORD_BOUNDARY t̠ʃ a WORD_BOUNDARY t̠ʃ a WORD_BOUNDARY t̠ʃ a WORD_BOUNDARY t̠ʃ a WORD_BOUNDARY
c a WORD_BOUNDARY c a WORD_BOUNDARY c a WORD_BOUNDARY c a WORD_BOUNDARY c a WORD_BOUNDARY . WORD_BOUNDARY