Question: Which of the following is known for his piety and memorized the Qur'an by the age of 7: Ahmad Nahavandi or Shah Waliullah Dehlawi?
{'answer': 'Shah Waliullah', 'supporting_facts': [['Ahmad Nahavandi', 0], ['Shah Waliullah Dehlawi', 0], ['Shah Waliullah Dehlawi', 2], ['Shah Waliullah Dehlawi', 3]]}