Question: when did compulsory military service end in south africa
[{'answer': '24 August 1993', 'provenance': [{'wikipedia_id': '4426912', 'title': 'End Conscription Campaign', 'start_paragraph_id': 28, 'start_character': 3, 'end_paragraph_id': 28, 'end_character': 17, 'bleu_score': 1.0, 'section': 'Section::::End of conscription.\n'}]}, {'provenance': [{'wikipedia_id': '4426912', 'title': 'End Conscription Campaign', 'start_paragraph_id': 28, 'start_character': 0, 'end_paragraph_id': 28, 'end_character': 723, 'bleu_score': 0.9839344367380701, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12309964553762916569}, 'section': 'Section::::End of conscription.\n'}]}]