Assertion: national park's acre | /r/HasProperty | 533.9 sq mi
Facets:
Source sentences:
text: As part of the World War II effort, the U.S. Army Air Force (USAAF) took possession of 341,726 acres (533.9 sq mi; 1,382.9 km2) of land on the Pine Ridge Indian Reservation, home of the Oglala Sioux people, for a gunnery range.