Question: who was the song dear mr president written about
[{'answer': 'George W. Bush', 'provenance': [{'wikipedia_id': '5484941', 'title': 'Dear Mr. President (Pink song)', 'start_paragraph_id': 1, 'start_character': 196, 'end_paragraph_id': 1, 'end_character': 210, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}, {'provenance': [{'wikipedia_id': '5484941', 'title': 'Dear Mr. President (Pink song)', 'start_paragraph_id': 1, 'start_character': 0, 'end_paragraph_id': 1, 'end_character': 592, 'bleu_score': 0.9106679819523871, 'meta': {'yes_no_answer': 'NONE', 'annotation_id': 883968071400054496}, 'section': 'Section::::Abstract.'}]}]