Question: when was national service abolished in the uk
[{'answer': '31 December 1960', 'provenance': [{'wikipedia_id': '15180157', 'title': 'Conscription in the United Kingdom', 'start_paragraph_id': 25, 'start_character': 299, 'end_paragraph_id': 25, 'end_character': 315, 'bleu_score': 1.0, 'section': 'Section::::After 1945.\n'}]}, {'answer': '1960', 'provenance': [{'wikipedia_id': '15180157', 'title': 'Conscription in the United Kingdom', 'start_paragraph_id': 1, 'start_character': 137, 'end_paragraph_id': 1, 'end_character': 141, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'answer': 'November 1960', 'provenance': [{'wikipedia_id': '15180157', 'title': 'Conscription in the United Kingdom', 'start_paragraph_id': 25, 'start_character': 225, 'end_paragraph_id': 25, 'end_character': 238, 'bleu_score': 1.0, 'section': 'Section::::After 1945.\n'}]}, {'provenance': [{'wikipedia_id': '15180157', 'title': 'Conscription in the United Kingdom', 'start_paragraph_id': 25, 'start_character': 0, 'end_paragraph_id': 25, 'end_character': 383, 'bleu_score': 0.970362113628587, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17289121948916120818}, 'section': 'Section::::After 1945.\n'}]}, {'provenance': [{'wikipedia_id': '15180157', 'title': 'Conscription in the United Kingdom', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 460, 'bleu_score': 0.97451705556073, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17289121948916120818}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '15180157', 'title': 'Conscription in the United Kingdom', 'section': 'Section::::After 1945.\n', 'start_paragraph_id': 25, 'end_paragraph_id': 25, 'meta': {'evidence_span': ['National Service ended gradually from 1957. It was decided that those born on or after 1 October 1939 would not be required, but conscription continued for those born earlier whose call-up had been delayed for any reason. In November 1960 the last men entered service, as call-ups formally ended on 31 December 1960, and the last National Servicemen left the armed forces in May 1963.', 'In November 1960 the last men entered service, as call-ups formally ended on 31 December 1960, and the last National Servicemen left the armed forces in May 1963.']}}]}]