Question: who sings the song never gonna give you up
[{'answer': 'Richard Paul Astley', 'provenance': [{'wikipedia_id': '447541', 'title': 'Rick Astley', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 19, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '447541', 'title': 'Rick Astley', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 331, 'bleu_score': 0.8683487742803291, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 2403332316673962583}, 'section': 'Section::::Abstract.'}]}]