'n rucksack ha' der
'n rucksack ha' der ?
 ɛ n WORD_BOUNDARY ʀ ʊ k z a k WORD_BOUNDARY h aː WORD_BOUNDARY d ɛ ɐ WORD_BOUNDARY
' n WORD_BOUNDARY r u c k s a c k WORD_BOUNDARY h a ' WORD_BOUNDARY d e r WORD_BOUNDARY