an airplane roared
a airplane roar
det:art n v
an airplane roared .
ɐ n WORD_BOUNDARY ɛ ɹ p l eɪ n WORD_BOUNDARY ɹ oː ɹ d WORD_BOUNDARY
a n WORD_BOUNDARY a i r p l a n e WORD_BOUNDARY r o a r e d WORD_BOUNDARY