Question: where did the cubs play before wrigley field
[{'answer': 'West Side Grounds', 'provenance': [{'wikipedia_id': '40224', 'title': 'Wrigley Field', 'start_paragraph_id': 6, 'start_character': 273, 'end_paragraph_id': 6, 'end_character': 290, 'bleu_score': 1.0, 'section': 'Section::::History.\n'}]}, {'provenance': [{'wikipedia_id': '40224', 'title': 'Wrigley Field', 'start_paragraph_id': 6, 'start_character': 0, 'end_paragraph_id': 6, 'end_character': 315, 'bleu_score': 0.9611463610973231, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17433992685214722045}, 'section': 'Section::::History.\n'}]}]