Sentence: The 14th New Jersey Volunteer Infantry Monument was established on 11 July 1907 and is located in the district of the Monocacy National Battlefield in Frederick County, Maryland, US. The monument is owned by the National Park Service. The nearest city to the battlefield is Frederick, Maryland.

What structured data could we extract from this sentence?
Monocacy National Battlefield, location, Frederick County, Maryland; 14th New Jersey Volunteer Infantry Monument, established, "1907-07-11"; 14th New Jersey Volunteer Infantry Monument, country, "United States"; 14th New Jersey Volunteer Infantry Monument, district, Monocacy National Battlefield; Monocacy National Battlefield, nearestCity, Frederick, Maryland; 14th New Jersey Volunteer Infantry Monument, owningOrganisation, National Park Service