Give a stream of consciousness and then the final answer. Marawi City, officially known as the Islamic City of Marawi (Maranao: Inged san Marawi; Arabic: مدينة مراوي ‎ ‎; Filipino: Lungsod Islamiko ng Marawi), is the capital and the largest city of the province of Lanao del Sur on the island of Mindanao in the Philippines. According to the 2015 census, it has a population of 201,785.

Based on this passage, what part of the philippines is marawi city?

Show your work and conclude with the exact phrasing "Therefore, the final answer is [answer]." where [answer] is just the final number or expression that solves the problem.
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The relevant information to answer the above question is: Marawi City, officially known as the Islamic City of Marawi (Maranao: Inged san Marawi; Arabic: مدينة مراوي ‎ ‎; Filipino: Lungsod Islamiko ng Marawi), is the capital and the largest city of the province of Lanao del Sur on the island of Mindanao in the Philippines.
So, the final answer is province of Lanao del Sur on the island of Mindanao.