Question: who wrote the song pink fluffy unicorns dancing on rainbows
[{'answer': 'Andrew Huang', 'provenance': [{'wikipedia_id': '51060074', 'title': 'Andrew Huang (musician)', 'start_paragraph_id': 0, 'start_character': 0, 'end_paragraph_id': 0, 'end_character': 12, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]