a_ver busca otro
a ver busca otro .
a WORD_BOUNDARY β e̞ ɾ WORD_BOUNDARY β u s k a WORD_BOUNDARY o̞ t ɾ o̞ WORD_BOUNDARY
a WORD_BOUNDARY v e r WORD_BOUNDARY b u s c a WORD_BOUNDARY o t r o WORD_BOUNDARY . WORD_BOUNDARY