Question: what part of the philippines is marawi city
[{'answer': 'Mindanao', 'provenance': [{'wikipedia_id': '871065', 'title': 'Marawi', 'start_paragraph_id': 12, 'start_character': 357, 'end_paragraph_id': 12, 'end_character': 365, 'bleu_score': 1.0, 'section': 'Section::::History.:2017 Battle of Marawi.\n'}]}]