Question: when did south africa return to international cricket
[{'answer': '1991', 'provenance': [{'wikipedia_id': '759263', 'title': 'South Africa national cricket team', 'start_paragraph_id': 3, 'start_character': 32, 'end_paragraph_id': 3, 'end_character': 36, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '759263', 'title': 'South Africa national cricket team', 'start_paragraph_id': 33, 'start_character': 0, 'end_paragraph_id': 33, 'end_character': 398, 'bleu_score': 0.9338603241255111, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 3255378300448890338}, 'section': 'Section::::History.:A rainbow nation.\n'}]}]