entonces son blancos o no
entonces son blancos o no ?
e n t o n θ e s WORD_BOUNDARY s o m WORD_BOUNDARY b l a n k o s WORD_BOUNDARY o WORD_BOUNDARY n o WORD_BOUNDARY
e n t o n c e s WORD_BOUNDARY s o n WORD_BOUNDARY b l a n c o s WORD_BOUNDARY o WORD_BOUNDARY n o WORD_BOUNDARY