or a heliocopter
or a helicopter
coord det:art n
or a heliocopter ?
ɔ ɹ WORD_BOUNDARY ʌ WORD_BOUNDARY h ɛ l ɪ ɑ k ɑ p t ə ɹ WORD_BOUNDARY
o r WORD_BOUNDARY a WORD_BOUNDARY h e l i o c o p t e r WORD_BOUNDARY