Question: when did the first season of big brother air in sa
[{'answer': '2001', 'provenance': [{'wikipedia_id': '12563819', 'title': 'Big Brother (South African TV series)', 'start_paragraph_id': 1, 'start_character': 177, 'end_paragraph_id': 1, 'end_character': 181, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '12563819', 'title': 'Big Brother (South African TV series)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 280, 'bleu_score': 0.962600167205617, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 5412778025384645638}, 'section': 'Section::::Abstract.'}]}]