na rhaid cau drws gyntaf
na rhaid cau drws gyntaf .
n a WORD_BOUNDARY h r aɪ d WORD_BOUNDARY k aɨ WORD_BOUNDARY d r uː s WORD_BOUNDARY ɡ ʌ n t a v WORD_BOUNDARY
n a WORD_BOUNDARY r h a i d WORD_BOUNDARY c a u WORD_BOUNDARY d r w s WORD_BOUNDARY g y n t a f WORD_BOUNDARY