opa é aperta aperta
opa é aperta aperta .
ɔ p ɐ WORD_BOUNDARY ɛ WORD_BOUNDARY ɐ p ɛ ɾ ə t ɐ WORD_BOUNDARY ɐ p ɛ ɾ ə t ɐ WORD_BOUNDARY
o p a WORD_BOUNDARY é WORD_BOUNDARY a p e r t a WORD_BOUNDARY a p e r t a WORD_BOUNDARY