un labio una barra de labios
un labio una barra de labios .
u n WORD_BOUNDARY l a β j o̞ WORD_BOUNDARY u n a WORD_BOUNDARY β a r a WORD_BOUNDARY d e̞ WORD_BOUNDARY l a β j o̞ s WORD_BOUNDARY
u n WORD_BOUNDARY l a b i o WORD_BOUNDARY u n a WORD_BOUNDARY b a r r a WORD_BOUNDARY d e WORD_BOUNDARY l a b i o s WORD_BOUNDARY . WORD_BOUNDARY