welche alte Maschine
welch alt Maschine
adjm adjm n
welche alte maschine ?
v ɛ l ç ə WORD_BOUNDARY  a l t ə WORD_BOUNDARY m a ʃ iː n ə WORD_BOUNDARY
w e l c h e WORD_BOUNDARY a l t e WORD_BOUNDARY m a s c h i n e WORD_BOUNDARY