Question: who is the main character in metal gear
[{'answer': 'mercenary Solid Snake', 'provenance': [{'wikipedia_id': '3152703', 'title': 'List of Metal Gear characters', 'start_paragraph_id': 2, 'start_character': 19, 'end_paragraph_id': 2, 'end_character': 40, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3152703', 'title': 'List of Metal Gear characters', 'start_paragraph_id': 2, 'start_character': 0, 'end_paragraph_id': 2, 'end_character': 534, 'bleu_score': 0.8007945915737621, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14606178104214471261}, 'section': 'Section::::Abstract.'}]}]