are those letters or numbers
be those letter or number
cop det:dem n coord n
are those letters or numbers ?
ɑː ɹ WORD_BOUNDARY ð oʊ z WORD_BOUNDARY l ɛ ɾ ɚ z WORD_BOUNDARY ɔː ɹ WORD_BOUNDARY n ʌ m b ɚ z WORD_BOUNDARY
a r e WORD_BOUNDARY t h o s e WORD_BOUNDARY l e t t e r s WORD_BOUNDARY o r WORD_BOUNDARY n u m b e r s WORD_BOUNDARY