Question: When was the undefeated Russian mixed martial artist of Avar heritage born who was a MMA star and trains with Magomedrasul Mukhtarovich Gazimagomedov?
{'answer': 'September 20, 1988', 'supporting_facts': [['Magomedrasul Gazimagomedov', 0], ['Magomedrasul Gazimagomedov', 5], ['Khabib Nurmagomedov', 0]]}