Question: when did the united states host the world cup
[{'answer': '1994'}, {'provenance': [{'wikipedia_id': '4743361', 'title': 'FIFA World Cup hosts', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 0, 'bleu_score': 1.0, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 1342406654201373834}, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '186853', 'title': 'United States Soccer Federation', 'section': 'Section::::History.\n', 'start_paragraph_id': 34, 'end_paragraph_id': 34, 'meta': {'evidence_span': ["U.S. Soccer has hosted several global soccer tournaments, including the 1994 FIFA World Cup, the FIFA Women's World Cup in 1999 and 2003, and the Summer Olympics in 1984 and 1996.", 'the United States Soccer Federation. U.S. Soccer has hosted several global soccer tournaments, including the 1994 FIFA World Cup', "U.S. Soccer has hosted several global soccer tournaments, including the 1994 FIFA World Cup, the FIFA Women's World Cup in 1999 and 2003"]}}]}]