Question: how many characters are there in marvel vs capcom infinite
[{'answer': '30 playable characters', 'provenance': [{'wikipedia_id': '52464392', 'title': 'Marvel vs. Capcom: Infinite', 'start_paragraph_id': 10, 'start_character': 56, 'end_paragraph_id': 10, 'end_character': 78, 'bleu_score': 1.0, 'section': 'Section::::Gameplay.:Playable characters.\n'}]}, {'provenance': [{'wikipedia_id': '52464392', 'title': 'Marvel vs. Capcom: Infinite', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 253, 'bleu_score': 0.788897164871173, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 16139008291409365103}, 'section': 'Section::::Gameplay.:Playable characters.\n'}]}]