Premise: A frigate [ ˈfrɪɡᵻt ] is any of several types of warship , the term having been used for ships of various sizes and roles over the last few centuries . USS Constitution is a wooden-hulled , three-masted heavy frigate of the United States Navy , named by President George Washington after the Constitution of the United States of America . She is the world 's oldest commissioned naval vessel afloat . As a fully commissioned U.S. Navy ship , her crew of 60 officers and sailors participate in ceremonies , educational programs , and special events while keeping Constitution open to visitors year round and providing free tours .
Hypothesis: The USS Constitution is a United States Navy ship.
Label: ENTAILMENT