Question: how many teams from asia in world cup 2018
[{'answer': 'five', 'provenance': [{'wikipedia_id': '43016062', 'title': '2018 FIFA World Cup qualification (AFC)', 'start_paragraph_id': 25, 'start_character': 114, 'end_paragraph_id': 25, 'end_character': 118, 'bleu_score': 1.0, 'section': 'Section::::Second round.:Ranking of runner-up teams.\n'}]}, {'provenance': [{'wikipedia_id': '43016062', 'title': '2018 FIFA World Cup qualification (AFC)', 'start_paragraph_id': 35, 'start_character': 0, 'end_paragraph_id': 35, 'end_character': 68, 'bleu_score': 0.8242367502646051, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 14532569730007307918}, 'section': 'Section::::Qualified teams.\n'}]}]