a segundo de preescolar
a segundo de preescolar ?
a WORD_BOUNDARY s e ɣ u n d o WORD_BOUNDARY ð e WORD_BOUNDARY p ɾ e e s k o l a ɾ WORD_BOUNDARY
a WORD_BOUNDARY s e g u n d o WORD_BOUNDARY d e WORD_BOUNDARY p r e e s c o l a r WORD_BOUNDARY