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pro:sub part det:art
we're building a spaceship .
w ɪ ɹ WORD_BOUNDARY b ɪ l d ɪ ŋ WORD_BOUNDARY ɐ WORD_BOUNDARY s p eɪ s ʃ ɪ p WORD_BOUNDARY
w e ' r e WORD_BOUNDARY b u i l d i n g WORD_BOUNDARY a WORD_BOUNDARY s p a c e s h i p WORD_BOUNDARY