Question: where was the first birth control pill invented
[{'answer': 'Mexico City', 'provenance': [{'wikipedia_id': '18978770', 'title': 'Birth control', 'start_paragraph_id': 72, 'start_character': 225, 'end_paragraph_id': 72, 'end_character': 236, 'bleu_score': 1.0, 'section': 'Section::::History.:Modern methods.\n'}]}, {'provenance': [{'wikipedia_id': '18978770', 'title': 'Birth control', 'start_paragraph_id': 72, 'start_character': 0, 'end_paragraph_id': 72, 'end_character': 835, 'bleu_score': 0.9845548242372031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14958749789864540427}, 'section': 'Section::::History.:Modern methods.\n'}]}]