a_ver vamos a ver
a ver vamos a ver .
a WORD_BOUNDARY β e ɾ WORD_BOUNDARY β a m o s WORD_BOUNDARY a WORD_BOUNDARY β e ɾ WORD_BOUNDARY
a WORD_BOUNDARY v e r WORD_BOUNDARY v a m o s WORD_BOUNDARY a WORD_BOUNDARY v e r WORD_BOUNDARY