tuturututurututu tuturututurututu
tuturututurututu tuturututurututu .
t̪ u t̪ u r u t̪ u t̪ u r u t̪ u t̪ u WORD_BOUNDARY t̪ u t̪ u r u t̪ u t̪ u r u t̪ u t̪ u WORD_BOUNDARY
t u t u r u t u t u r u t u t u WORD_BOUNDARY t u t u r u t u t u r u t u t u WORD_BOUNDARY . WORD_BOUNDARY