tá_bom tá_bom sim
tá bom tá bom sim .
t̪ a WORD_BOUNDARY b õ WORD_BOUNDARY t̪ a WORD_BOUNDARY b õ WORD_BOUNDARY s ĩ WORD_BOUNDARY
t á WORD_BOUNDARY b o m WORD_BOUNDARY t á WORD_BOUNDARY b o m WORD_BOUNDARY s i m WORD_BOUNDARY . WORD_BOUNDARY