na ar yr afon o'dd rhein yndefe shwt swn o'n nhw 'n neud
na ar yr afon o'dd rhein yndefe shwt swn o'n nhw 'n neud ?
n a WORD_BOUNDARY  a r WORD_BOUNDARY ə r WORD_BOUNDARY ɑː v ɔ n WORD_BOUNDARY oː ð WORD_BOUNDARY h r əɪ n WORD_BOUNDARY ʌ n d eː v ɛ WORD_BOUNDARY s h ʊ t WORD_BOUNDARY s ʊ n WORD_BOUNDARY  oː n WORD_BOUNDARY n h uː WORD_BOUNDARY ɛ n WORD_BOUNDARY n əɨ d WORD_BOUNDARY
n a WORD_BOUNDARY a r WORD_BOUNDARY y r WORD_BOUNDARY a f o n WORD_BOUNDARY o ' d d WORD_BOUNDARY r h e i n WORD_BOUNDARY y n d e f e WORD_BOUNDARY s h w t WORD_BOUNDARY s w n WORD_BOUNDARY o ' n WORD_BOUNDARY n h w WORD_BOUNDARY ' n WORD_BOUNDARY n e u d WORD_BOUNDARY