this is a heavy rock
this be a heavy rock
pro:dem cop det:art adj n
this is a heavy rock .
ð ɪ s WORD_BOUNDARY ɪ z WORD_BOUNDARY ɐ WORD_BOUNDARY h ɛ v i WORD_BOUNDARY ɹ ɑː k WORD_BOUNDARY
t h i s WORD_BOUNDARY i s WORD_BOUNDARY a WORD_BOUNDARY h e a v y WORD_BOUNDARY r o c k WORD_BOUNDARY