ach China ist da
ach China sein da
on n:prop cop adv
ach china ist da ?
 a x WORD_BOUNDARY ç iː n aː WORD_BOUNDARY  ɪ s t WORD_BOUNDARY d aː WORD_BOUNDARY
a c h WORD_BOUNDARY c h i n a WORD_BOUNDARY i s t WORD_BOUNDARY d a WORD_BOUNDARY