vamos a ver un libro
vamos a ver un libro .
b a m o s WORD_BOUNDARY a WORD_BOUNDARY β e ɾ WORD_BOUNDARY u n WORD_BOUNDARY l i β ɾ o WORD_BOUNDARY
v a m o s WORD_BOUNDARY a WORD_BOUNDARY v e r WORD_BOUNDARY u n WORD_BOUNDARY l i b r o WORD_BOUNDARY