Premise: The United States Naval Academy ( also known as USNA , Annapolis , or simply Navy ) is a four-year coeducational federal service academy in Annapolis , Maryland , United States . Established on 10 October 1845 , under Secretary of the Navy George Bancroft , it is the second oldest of the United States ' five service academies , and educates officers for commissioning primarily into the United States Navy and United States Marine Corps .
Hypothesis: The United States Naval Academy is a service institution.
Label: ENTAILMENT