brick walls wood walls
brick wall wood wall
n n n n
brick walls wood walls .
b ɹ ɪ k WORD_BOUNDARY w ɔː l z WORD_BOUNDARY w ʊ d WORD_BOUNDARY w ɔː l z WORD_BOUNDARY
b r i c k WORD_BOUNDARY w a l l s WORD_BOUNDARY w o o d WORD_BOUNDARY w a l l s WORD_BOUNDARY