Question: What did Nirvana do differently with "In Utero" that caused a documentary to be made about recording the album?
{'answer': 'hired engineer Steve Albini', 'supporting_facts': [['Nirvana – A Classic Album Under Review – In Utero', 0], ['Nirvana – A Classic Album Under Review – In Utero', 1], ['In Utero (album)', 2]]}