Question: who discovered the sea route to india from europe
[{'answer': 'Portuguese explorer Vasco da Gama', 'provenance': [{'wikipedia_id': '49493536', 'title': 'Portuguese discovery of the sea route to India', 'start_paragraph_id': 1, 'start_character': 166, 'end_paragraph_id': 1, 'end_character': 199, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '49493536', 'title': 'Portuguese discovery of the sea route to India', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 462, 'bleu_score': 0.704123266552216, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 12520625697293602200}, 'section': 'Section::::Abstract.'}]}]