Question: where did the underground rail road lead to
[{'answer': 'free states', 'provenance': [{'wikipedia_id': '32190', 'title': 'Underground Railroad', 'start_paragraph_id': 1, 'start_character': 187, 'end_paragraph_id': 1, 'end_character': 198, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Canada', 'provenance': [{'wikipedia_id': '32190', 'title': 'Underground Railroad', 'start_paragraph_id': 1, 'start_character': 203, 'end_paragraph_id': 1, 'end_character': 209, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Mexico', 'provenance': [{'wikipedia_id': '32190', 'title': 'Underground Railroad', 'start_paragraph_id': 1, 'start_character': 429, 'end_paragraph_id': 1, 'end_character': 435, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'overseas', 'provenance': [{'wikipedia_id': '32190', 'title': 'Underground Railroad', 'start_paragraph_id': 1, 'start_character': 439, 'end_paragraph_id': 1, 'end_character': 447, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'Florida', 'provenance': [{'wikipedia_id': '32190', 'title': 'Underground Railroad', 'start_paragraph_id': 1, 'start_character': 494, 'end_paragraph_id': 1, 'end_character': 501, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '32190', 'title': 'Underground Railroad', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 1002, 'bleu_score': 0.9088495625311491, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14341455271827976285}, 'section': 'Section::::Abstract.'}]}]