one piece of ch
one piece of
det:num n prep
one piece of ch .
w ʌ n WORD_BOUNDARY p iː s WORD_BOUNDARY ʌ v WORD_BOUNDARY s iː eɪ t̠ʃ WORD_BOUNDARY
o n e WORD_BOUNDARY p i e c e WORD_BOUNDARY o f WORD_BOUNDARY c h WORD_BOUNDARY