oh wills' du schlafen
oh wills' du schlafen ?
 oː WORD_BOUNDARY v ɪ l s WORD_BOUNDARY d uː WORD_BOUNDARY ʃ l aː f ə n WORD_BOUNDARY
o h WORD_BOUNDARY w i l l s ' WORD_BOUNDARY d u WORD_BOUNDARY s c h l a f e n WORD_BOUNDARY