Question: who is the most followed user on instagram
[{'answer': 'Instagram', 'provenance': [{'wikipedia_id': '52088909', 'title': 'List of most-followed Instagram accounts', 'start_paragraph_id': 0, 'start_character': 22, 'end_paragraph_id': 0, 'end_character': 31, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]