ac o'dd Dad ar y tren
ac o'dd dad ar y tren ?
a k WORD_BOUNDARY oː ð WORD_BOUNDARY d ɑː d WORD_BOUNDARY  a r WORD_BOUNDARY ə WORD_BOUNDARY t r ɛ n WORD_BOUNDARY
a c WORD_BOUNDARY o ' d d WORD_BOUNDARY d a d WORD_BOUNDARY a r WORD_BOUNDARY y WORD_BOUNDARY t r e n WORD_BOUNDARY