Question: who opened a route to india by sailing around the southern coast of africa
[{'answer': 'Vasco da Gama', 'provenance': [{'wikipedia_id': '53083279', 'title': 'Cape Route', 'start_paragraph_id': 1, 'start_character': 348, 'end_paragraph_id': 1, 'end_character': 361, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '53083279', 'title': 'Cape Route', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 470, 'bleu_score': 0.9776501033621461, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 11636478102335208720}, 'section': 'Section::::Abstract.'}]}]