Question: who is the protagonist in the social network
[{'answer': 'Mark Zuckerberg ,', 'provenance': [{'wikipedia_id': '24319139', 'title': 'The Social Network', 'start_paragraph_id': 1, 'start_character': 387, 'end_paragraph_id': 1, 'end_character': 409, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '24319139', 'title': 'The Social Network', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 784, 'bleu_score': 0.9281235714515921, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1949316107958156802}, 'section': 'Section::::Abstract.'}]}]