Question: who does sanchez play for in the world cup
[{'answer': 'Chile', 'provenance': [{'wikipedia_id': '5901324', 'title': 'Alexis Sánchez', 'start_paragraph_id': 1, 'start_character': 94, 'end_paragraph_id': 1, 'end_character': 99, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5901324', 'title': 'Alexis Sánchez', 'start_paragraph_id': 58, 'start_character': 0, 'end_paragraph_id': 58, 'end_character': 231, 'bleu_score': 0.803443283072738, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2639530981354093320}, 'section': 'Section::::International career.:2018 FIFA World Cup Qualification.\n'}]}]