a Juan ha pisado
a Juan habe pisa
prepart n:prop aux part
a juan ha pisado ?
a WORD_BOUNDARY x w a n WORD_BOUNDARY a WORD_BOUNDARY p i s a d o̞ WORD_BOUNDARY
a WORD_BOUNDARY j u a n WORD_BOUNDARY h a WORD_BOUNDARY p i s a d o WORD_BOUNDARY ? WORD_BOUNDARY