tictac tictac tictac
tictac tictac tictac .
t̪ i k t̪ a k WORD_BOUNDARY t̪ i k t̪ a k WORD_BOUNDARY t̪ i k t̪ a k WORD_BOUNDARY
t i c t a c WORD_BOUNDARY t i c t a c WORD_BOUNDARY t i c t a c WORD_BOUNDARY . WORD_BOUNDARY