tú no tienes perro a que no
tú no tienes perro a que no !
t u WORD_BOUNDARY n o WORD_BOUNDARY t j e n e s WORD_BOUNDARY p e r o WORD_BOUNDARY a WORD_BOUNDARY k e WORD_BOUNDARY n o WORD_BOUNDARY
t ú WORD_BOUNDARY n o WORD_BOUNDARY t i e n e s WORD_BOUNDARY p e r r o WORD_BOUNDARY a WORD_BOUNDARY q u e WORD_BOUNDARY n o WORD_BOUNDARY