their heads are made of rubber
their head be make of rubber
det:poss n aux part prep n
their heads are made of rubber .
ð ɛ ɹ WORD_BOUNDARY h ɛ d z WORD_BOUNDARY ɑː ɹ WORD_BOUNDARY m eɪ d WORD_BOUNDARY ʌ v WORD_BOUNDARY ɹ ʌ b ɚ WORD_BOUNDARY
t h e i r WORD_BOUNDARY h e a d s WORD_BOUNDARY a r e WORD_BOUNDARY m a d e WORD_BOUNDARY o f WORD_BOUNDARY r u b b e r WORD_BOUNDARY