B:	Our most pollute substance down here is just water.
b iː WORD_BOUNDARY aʊ ə ɹ WORD_BOUNDARY m oʊ s t WORD_BOUNDARY p ə l uː t WORD_BOUNDARY s ʌ b s t ə n s WORD_BOUNDARY d aʊ n WORD_BOUNDARY h ɪ ɹ WORD_BOUNDARY ɪ z WORD_BOUNDARY d̠ʒ ʌ s t WORD_BOUNDARY w ɔ t ə ɹ WORD_BOUNDARY