airplanes are for flying
airplane be for fly
n cop prep n:gerund
airplanes are for flying .
ɛ ɹ p l eɪ n z WORD_BOUNDARY ɑː ɹ WORD_BOUNDARY f ɔː ɹ WORD_BOUNDARY f l aɪ ɪ ŋ WORD_BOUNDARY
a i r p l a n e s WORD_BOUNDARY a r e WORD_BOUNDARY f o r WORD_BOUNDARY f l y i n g WORD_BOUNDARY