a patatas Mamá a patatas
a patata Mamá a patata
prepart n n:prop prepart n
a patatas mamá a patatas .
a WORD_BOUNDARY p a t a t a s WORD_BOUNDARY m a m a WORD_BOUNDARY a WORD_BOUNDARY p a t a t a s WORD_BOUNDARY
a WORD_BOUNDARY p a t a t a s WORD_BOUNDARY m a m á WORD_BOUNDARY a WORD_BOUNDARY p a t a t a s WORD_BOUNDARY . WORD_BOUNDARY