Question: who laughs on dark side of the moon
[{'answer': 'Peter Watts', 'provenance': [{'wikipedia_id': '2657735', 'title': 'Brain Damage (song)', 'start_paragraph_id': 10, 'start_character': 307, 'end_paragraph_id': 10, 'end_character': 318, 'bleu_score': 1.0, 'section': 'Section::::Versions.\n'}]}, {'provenance': [{'wikipedia_id': '2657735', 'title': 'Brain Damage (song)', 'start_paragraph_id': 10, 'start_character': 0, 'end_paragraph_id': 10, 'end_character': 519, 'bleu_score': 0.899857788642431, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 17546946898495199269}, 'section': 'Section::::Versions.\n'}]}]