Question: where did the valentine's day massacre happen
[{'answer': '1929', 'provenance': [{'wikipedia_id': '42097', 'title': "Saint Valentine's Day Massacre", 'start_paragraph_id': 1, 'start_character': 43, 'end_paragraph_id': 1, 'end_character': 47, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]