Question: Information: - USNS Watertown ( T - AGM - 6 ) was a Watertown - class missile range instrumentation ship acquired by the U.S. Navy in 1960 and converted from her Victory ship cargo configuration to a missile tracking ship , a role she retained for eleven years before being placed out of service in 1971 . - The Liberty ship was a class of cargo ship built in the United States during World War II. Though British in conception, the design was adapted by the United States for its simple, low-cost construction. Mass-produced on an unprecedented scale, the now iconic Liberty ship came to symbolize U.S. wartime industrial output. - The Victory ship was a class of cargo ship produced in large numbers by North American shipyards during World War II to replace losses caused by German submarines. They were a more modern design compared to the earlier Liberty ship, were slightly larger and had more powerful steam turbine engines giving higher speed to allow participation in high speed convoys and make them more difficult targets for German U-boats. A total of 531 Victory ships were built. - World WarII (often abbreviated to WWII or WW2), also known as the Second World War, was a global war that lasted from 1939 to 1945, although related conflicts began earlier. It involved the vast majority of the world's nationsincluding all of the great powerseventually forming two opposing military alliances: the Allies and the Axis. It was the most widespread war in history, and directly involved more than 100 million people from over 30 countries. In a state of "total war", the major participants threw their entire economic, industrial, and scientific capabilities behind the war effort, erasing the distinction between civilian and military resources. Marked by mass deaths of civilians, including the Holocaust (in which approximately 11 million people were killed) and the strategic bombing of industrial and population centres (in which approximately one million were killed, and which included the atomic bombings of Hiroshima and Nagasaki), it resulted in an estimated 50 million to 85 million fatalities. These made World WarII the deadliest conflict in human history. - U-boat is the anglicised version of the German word U-Boot , a shortening of Unterseeboot, literally "undersea boat". While the German term refers to any submarine, the English one (in common with several other languages) refers specifically to military submarines operated by Germany, particularly in the First and Second World Wars. Although at times they were efficient fleet weapons against enemy naval warships, they were most effectively used in an economic warfare role (commerce raiding), enforcing a naval blockade against enemy shipping. The primary targets of the U-boat campaigns in both wars were the merchant convoys bringing supplies from Canada, the British Empire, and the United States to the United Kingdom and (during the Second World War) to the Soviet Union and the Allied territories in the Mediterranean. Given the paragraphs above, decide what entity has the relation 'conflict' with 'world war ii'.
Answer: usns watertown

input: Please answer the following: Information: - William Martin "Billy" Joel (born May 9, 1949) is an American singer-songwriter and pianist. Since releasing his first hit song, "Piano Man", in 1973, Joel has become the sixth best-selling recording artist and the third best-selling solo artist in the United States. His compilation album "Greatest Hits Vol. 1 & 2" is one of the best-selling albums in the US. - Singer-songwriters are musicians who write, compose, and perform their own musical material, including lyrics and melodies. - The Hassles were a rock group in the 1960s, most notable for recording the first releases to feature Billy Joel. The group released two full-length albums (United Artists Records) and a number of singles. - Cold Spring Harbor is the first studio album by American singer - songwriter Billy Joel , released on November 1 , 1971 . He had already released two albums as a member of the bands The Hassles ( 1967 , 1969 ) and Attila ( 1970 ) . - Lyrics are words that make up a song usually consisting of verses and choruses. The writer of lyrics is a lyricist. The words to an extended musical composition such as an opera are, however, usually known as a "libretto" and their writer, as a "librettist". The meaning of lyrics can either be explicit or implicit. Some lyrics are abstract, almost unintelligible, and, in such cases, their explication emphasizes form, articulation, meter, and symmetry of expression. Rappers can also create lyrics with a variation of rhyming words or words that create and tell a story or song. - A musician (or instrumentalist) is a person who plays a musical instrument or is musically talented. Anyone who composes, conducts, or performs music may also be referred to as a musician. Given the paragraphs above, decide what entity has the relation 'followed by' with 'piano man'.
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output:
cold spring harbor