Given the question: Information: - The Military Plaza in San Antonio dates back to the 18th century as a military and commercial center in San Antonio . - Texas is the second largest state in the United States by both area and population. Geographically located in the south central part of the country, Texas shares borders with the U.S. states of Louisiana to the east, Arkansas to the northeast, Oklahoma to the north, New Mexico to the west, and the Mexican states of Chihuahua, Coahuila, Nuevo Leon, and Tamaulipas to the southwest, while the Gulf of Mexico is to the southeast. - San Antonio (Spanish for "Saint Anthony"), officially the City of San Antonio, is the seventh-most populated city in the United States and the second-most populous city in the state of Texas, with a population of 1,409,019. It was the fastest growing of the top 10 largest cities in the United States from 2000 to 2010, and the second from 1990 to 2000. The city straddles South Texas and Central Texas and is on the southwestern corner of an urban megaregion known as the Texas Triangle. - The Texas Triangle is one of eleven "megaregions" in the United States. These are urban areas that are much greater in scale than a metropolitan statistical area (MSA), defined by the US Census Bureau. These regions also are known as "megapolitan areas". The Texas Triangle is formed by the three main cities, Houston, Dallas, and San Antonio, connected by a highway system of Interstate 45, Interstate 10, and Interstate 35. The area is sometime also referred to as the Texaplex. - Central Texas is a region in the U.S. state of Texas surrounding Austin and roughly bordered by Brady to Kerrville to La Grange to Waco. Central Texas contains the Texas Hill Country and corresponds to a physiographic section designation within the Edwards Plateau, in a geographic context. - South Texas is a region of the U.S. state of Texas that lies roughly south of -- and sometimes including -- San Antonio. The southern and western boundary is the Rio Grande, and to the east it is the Gulf of Mexico. The population of this region is about 4.67 million according to the 2013 census estimates. The southern portion of this region is often referred to as the Rio Grande Valley. The eastern portion along the Gulf of Mexico is also referred to as the Coastal Bend. Given the information, choose the subject and object entities that have the relation of 'located in the administrative territorial entity'.
The answer is:
military plaza , texas