Question: when did south africa host rugby world cup
[{'answer': '1995', 'provenance': [{'wikipedia_id': '4860387', 'title': 'Rugby World Cup hosts', 'start_paragraph_id': 12, 'start_character': 11, 'end_paragraph_id': 12, 'end_character': 15, 'bleu_score': 1.0, 'section': 'Section::::Hosts by tournament.:1991: England, Ireland, Wales, France and Scotland.\n'}]}]