tutua tutua tutua tutua tutua
tutua tutua tutua tutua tutua .
t̪ u t̪ u a WORD_BOUNDARY t̪ u t̪ u a WORD_BOUNDARY t̪ u t̪ u a WORD_BOUNDARY t̪ u t̪ u a WORD_BOUNDARY t̪ u t̪ u a WORD_BOUNDARY
t u t u a WORD_BOUNDARY t u t u a WORD_BOUNDARY t u t u a WORD_BOUNDARY t u t u a WORD_BOUNDARY t u t u a WORD_BOUNDARY . WORD_BOUNDARY