how old are they
how old be they
pro:int adj cop pro:sub
how old are they ?
h aʊ WORD_BOUNDARY oʊ l d WORD_BOUNDARY ɑː ɹ WORD_BOUNDARY ð eɪ WORD_BOUNDARY
h o w WORD_BOUNDARY o l d WORD_BOUNDARY a r e WORD_BOUNDARY t h e y WORD_BOUNDARY