Question: who sang the song never going to give you up
[{'answer': 'Rick Astley', 'provenance': [{'wikipedia_id': '5472903', 'title': 'Never Gonna Give You Up', 'start_paragraph_id': 1, 'start_character': 78, 'end_paragraph_id': 1, 'end_character': 89, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5472903', 'title': 'Never Gonna Give You Up', 'start_paragraph_id': 1, 'start_character': 78, 'end_paragraph_id': 1, 'end_character': 581, 'bleu_score': 0.816836493230894, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 6376400108129058751}, 'section': 'Section::::Abstract.'}]}]