Question: how many games do they need to win to win the world series
[{'answer': '4 games', 'provenance': [{'wikipedia_id': '23489161', 'title': 'World Series', 'start_paragraph_id': 56, 'start_character': 119, 'end_paragraph_id': 56, 'end_character': 126, 'bleu_score': 1.0, 'section': 'Section::::Modern World Series (1903–present).:1980s.:1984: Anderson becomes first to win in both leagues.\n'}]}, {'provenance': [{'wikipedia_id': '23489161', 'title': 'World Series', 'start_paragraph_id': 119, 'start_character': 0, 'end_paragraph_id': 119, 'end_character': 266, 'bleu_score': 0.9632870032952191, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14342103350688324131}, 'section': 'Section::::Modern World Series appearances by franchise.:Team patterns in the World Series.:Game-by-game.\n'}]}]