Question: year of the fall of the berlin wall
[{'answer': '1989', 'provenance': [{'wikipedia_id': '3722', 'title': 'Berlin Wall', 'start_paragraph_id': 1, 'start_character': 114, 'end_paragraph_id': 1, 'end_character': 118, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '3722', 'title': 'Berlin Wall', 'start_paragraph_id': 130, 'start_character': 0, 'end_paragraph_id': 130, 'end_character': 291, 'bleu_score': 0.8323978179356301, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6466050680440893443}, 'section': 'Section::::Fall of the Berlin Wall.:Demolition.\n'}]}]