Question: who imposed martial law in poland in 1981
[{'answer': 'Wojciech Jaruzelski', 'provenance': [{'wikipedia_id': '2010310', 'title': 'Martial law in Poland', 'start_paragraph_id': 3, 'start_character': 27, 'end_paragraph_id': 3, 'end_character': 46, 'bleu_score': 1.0, 'section': 'Section::::Declaration.\n'}]}, {'provenance': [{'wikipedia_id': '2010310', 'title': 'Martial law in Poland', 'start_paragraph_id': 3, 'start_character': 0, 'end_paragraph_id': 3, 'end_character': 296, 'bleu_score': 0.9042878500265971, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1797018542234629908}, 'section': 'Section::::Declaration.\n'}]}]