Question: who are the feuding families in romeo and juliet
[{'answer': 'Montague', 'provenance': [{'wikipedia_id': '25821', 'title': 'Romeo and Juliet', 'start_paragraph_id': 30, 'start_character': 67, 'end_paragraph_id': 30, 'end_character': 75, 'bleu_score': 1.0, 'section': 'Section::::Synopsis.\n'}]}, {'answer': 'Capulet', 'provenance': [{'wikipedia_id': '25821', 'title': 'Romeo and Juliet', 'start_paragraph_id': 30, 'start_character': 80, 'end_paragraph_id': 30, 'end_character': 87, 'bleu_score': 1.0, 'section': 'Section::::Synopsis.\n'}]}, {'provenance': [{'wikipedia_id': '25821', 'title': 'Romeo and Juliet', 'start_paragraph_id': 30, 'start_character': 0, 'end_paragraph_id': 30, 'end_character': 505, 'bleu_score': 0.9766041382465441, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5251578835188425370}, 'section': 'Section::::Synopsis.\n'}]}]