this is an old book
this be a old book
pro:dem cop det:art adj n
this is an old book .
ð ɪ s WORD_BOUNDARY ɪ z WORD_BOUNDARY ɐ n WORD_BOUNDARY oʊ l d WORD_BOUNDARY b ʊ k WORD_BOUNDARY
t h i s WORD_BOUNDARY i s WORD_BOUNDARY a n WORD_BOUNDARY o l d WORD_BOUNDARY b o o k WORD_BOUNDARY