Question: who wrote the song i know i've been changed
[{'answer': 'Tyler Perry', 'provenance': [{'wikipedia_id': '9013597', 'title': "I Know I've Been Changed", 'start_paragraph_id': 1, 'start_character': 83, 'end_paragraph_id': 1, 'end_character': 94, 'bleu_score': 1.0, 'section': 'Section::::Abstract.'}]}]