Question: when was the last time the san francisco giants won the world series
[{'answer': '2014', 'provenance': [{'wikipedia_id': '28416', 'title': 'San Francisco Giants', 'start_paragraph_id': 4, 'start_character': 175, 'end_paragraph_id': 4, 'end_character': 179, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '28416', 'title': 'San Francisco Giants', 'start_paragraph_id': 4, 'start_character': 0, 'end_paragraph_id': 4, 'end_character': 268, 'bleu_score': 0.955027111100031, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 8694454120008043747}, 'section': 'Section::::Abstract.'}]}]