um salto um salto
um salto um salto .
ũ WORD_BOUNDARY s a l̪ˠ t̪ o WORD_BOUNDARY ũ WORD_BOUNDARY s a l̪ˠ t̪ u WORD_BOUNDARY
u m WORD_BOUNDARY s a l t o WORD_BOUNDARY u m WORD_BOUNDARY s a l t o WORD_BOUNDARY . WORD_BOUNDARY