a trwyn o's a beth yw hwn
a trwyn o's a beth yw hwn ?
a WORD_BOUNDARY t r uɨ n WORD_BOUNDARY oː s WORD_BOUNDARY a WORD_BOUNDARY b eː θ WORD_BOUNDARY ɨu WORD_BOUNDARY h ʊ n WORD_BOUNDARY
a WORD_BOUNDARY t r w y n WORD_BOUNDARY o ' s WORD_BOUNDARY a WORD_BOUNDARY b e t h WORD_BOUNDARY y w WORD_BOUNDARY h w n WORD_BOUNDARY