With no explanation, label text_A→text_B with either "not_related" or "related".
text_A: The USS Constitution is open to visitors year round for free tours.
text_B: 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 .. hulled. hull ( watercraft ). masted. Mast ( sailing ). heavy frigate. heavy frigate. United States Navy. United States Navy. George Washington. George Washington. Constitution of the United States of America. United States Constitution. She is the world 's oldest commissioned naval vessel afloat .. commissioned. Ship commissioning. Constitution was launched in 1797 , one of six original frigates authorized for construction by the Naval Act of 1794 and the third constructed .. six original frigates. Original six frigates of the United States Navy. Naval Act of 1794. Naval Act of 1794. Joshua Humphreys designed the frigates to be the young Navy 's capital ships , and so Constitution and her sisters were larger and more heavily armed and built than standard frigates of the period .. Joshua Humphreys. Joshua Humphreys. Constitution was built in the North End of Boston , Massachusetts at Edmund Hartt 's shipyard .. Edmund Hartt. Edmund Hartt. Boston. Boston. Her first duties with the newly formed U.S. Navy were to provide protection for American merchant shipping during the Quasi-War with France and to defeat the Barbary pirates in the First Barbary War .. Quasi-War. Quasi-War. Barbary pirates. Barbary pirates. First Barbary War. First Barbary War. Constitution is most noted for her actions during the War of 1812 against the United Kingdom , when she captured numerous merchant ships and defeated five British warships  : , , , , and .. War of 1812. War of 1812. The battle with Guerriere earned her the nickname of `` Old Ironsides '' and public adoration that has repeatedly saved her from scrapping .. She continued to serve as flagship in the Mediterranean and African squadrons , and circled the world in the 1840s .. flagship. flagship. Mediterranean. Mediterranean Squadron ( United States ). African. Africa Squadron. During the American Civil War , she served as a training ship for the United States Naval Academy .. American Civil War. American Civil War. training ship. training ship. United States Naval Academy. United States Naval Academy. She carried American artwork and industrial displays to the Paris Exposition of 1878 .. Paris Exposition of 1878. Exposition Universelle ( 1878 ). Constitution was retired from active service in 1881 , and served as a receiving ship until designated a museum ship in 1907 .. receiving ship. receiving ship. museum ship. museum ship. In 1934 , she completed a three-year , 90-port tour of the nation .. Constitution sailed under her own power for her 200th birthday in 1997 , and again in August 2012 to commemorate the 200th anniversary of her victory over Guerriere .. victory. USS Constitution vs HMS Guerriere. Constitutions stated mission today is to promote understanding of the Navy 's role in war and peace through educational outreach , historical demonstration , and active participation in public events as part of the Naval History & Heritage Command .. Naval History & Heritage Command. Naval History & Heritage Command. 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 .. commissioned. Ship commissioning. The officers and crew are all active-duty U.S. Navy personnel and the assignment is considered to be special duty in the U.S. Navy .. Traditionally , command of the vessel is assigned to a Navy commander .. commander. Commander ( United States ). She is usually berthed at Pier 1 of the former Charlestown Navy Yard , at one end of Boston 's Freedom Trail .. Charlestown Navy Yard. Boston Navy Yard. Boston. Boston. Freedom Trail. Freedom Trail. In May 2015 , Constitution entered Dry Dock 1 to begin a three-year restoration program .
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