Question: who won the under 20 world cup 2017 fifa u-20
[{'answer': 'England', 'provenance': [{'wikipedia_id': '39142152', 'title': '2017 FIFA U-20 World Cup', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 7, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '39142152', 'title': '2017 FIFA U-20 World Cup', 'start_paragraph_id': 5, 'start_character': 0, 'end_paragraph_id': 5, 'end_character': 90, 'bleu_score': 0.674945488826271, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 9743564500255843679}, 'section': 'Section::::Abstract.'}]}]