their sheer strength and
their sheer strength and .
ð ɛ ɹ WORD_BOUNDARY ʃ ɪ ɹ WORD_BOUNDARY s t ɹ ɛ ŋ θ WORD_BOUNDARY æ n d WORD_BOUNDARY
t h e i r WORD_BOUNDARY s h e e r WORD_BOUNDARY s t r e n g t h WORD_BOUNDARY a n d WORD_BOUNDARY