und backe backe kuchen
und backe backe kuchen ?
 ʊ n t WORD_BOUNDARY b a k ə WORD_BOUNDARY b a k ə WORD_BOUNDARY k ʊ x ə n WORD_BOUNDARY
u n d WORD_BOUNDARY b a c k e WORD_BOUNDARY b a c k e WORD_BOUNDARY k u c h e n WORD_BOUNDARY