Given this paragraph, what is the size in acres of Walt Disney World?
The Walt Disney World Resort, also called Walt Disney World or Disney World, is an entertainment resort complex in Bay Lake and Lake Buena Vista, Florida, United States, near the cities of Orlando and Kissimmee. Opened on October 1, 1971, the resort is operated by Disney Parks, Experiences and Products, a division of The Walt Disney Company. The property covers nearly 25,000 acres (39 sq mi; 101 km2), of which half has been used. The resort comprises four theme parks (Magic Kingdom, Epcot, Disney's Hollywood Studios, and Disney's Animal Kingdom), two water parks (Disney's Blizzard Beach and Disney's Typhoon Lagoon), 31 themed resort hotels, nine non-Disney hotels, several golf courses, a camping resort, and other entertainment venues, including the outdoor shopping center Disney Springs. On October 1, 2021, Walt Disney World started its celebration of its 50-year anniversary which lasted for 18 consecutive months ending on March 31, 2023.
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According to this text, Walt Disney World is 12,500 acres and sits on 25,000 acres of property owned by the company.
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