that's kind of tough
that kind of tough
pro:rel adj prep adj
that's kind of tough .
ð æ t s WORD_BOUNDARY k aɪ n d WORD_BOUNDARY ʌ v WORD_BOUNDARY t ʌ f WORD_BOUNDARY
t h a t ' s WORD_BOUNDARY k i n d WORD_BOUNDARY o f WORD_BOUNDARY t o u g h WORD_BOUNDARY