sí primer grado B
sí primer grado b .
s i WORD_BOUNDARY p ɾ i m e̞ ɾ WORD_BOUNDARY ɡ ɾ a d o̞ WORD_BOUNDARY β WORD_BOUNDARY
s í WORD_BOUNDARY p r i m e r WORD_BOUNDARY g r a d o WORD_BOUNDARY b WORD_BOUNDARY . WORD_BOUNDARY