Question: when did martial law ended in the philippines
[{'answer': '17 January 1981'}, {'provenance': [{'wikipedia_id': '5082821', 'title': 'Proclamation No. 1081', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 185, 'bleu_score': 0.503553179465106, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 698034102108700341}, 'section': 'Section::::Abstract.'}]}]