twelve books a week
twelve book a week
det:num n det:art n
twelve books a week ?
t w ɛ l v WORD_BOUNDARY b ʊ k s WORD_BOUNDARY ɐ WORD_BOUNDARY w iː k WORD_BOUNDARY
t w e l v e WORD_BOUNDARY b o o k s WORD_BOUNDARY a WORD_BOUNDARY w e e k WORD_BOUNDARY