Question: What artist was pictured on the John Lennon album that took a year to record?
{'answer': 'Jürgen Vollmer', 'supporting_facts': [['Jürgen Vollmer', 0], ['Jürgen Vollmer', 3], ["Rock 'n' Roll (John Lennon album)", 0], ["Rock 'n' Roll (John Lennon album)", 2]]}