Task: Question Answering
Input (English): Passage: Scientists from various fields have honored Zappa by naming new discoveries after him. In 1967, paleontologist Leo P. Plas, Jr. identified an extinct mollusc in Nevada and named it Amaurotoma zappa with the motivation that, "The specific name, zappa, honors Frank Zappa".In the 1980s, biologist Ed Murdy named a genus of gobiid fishes of New Guinea Zappa, with a species named Zappa confluentus. Biologist Ferdinando Boero named a Californian jellyfish Phialella zappai (1987), noting that he had "pleasure in naming this species after the modern music composer".Belgian biologists Bosmans and Bosselaers discovered in the early 1980s a Cameroonese spider, which they in 1994 named Pachygnatha zappa because "the ventral side of the abdomen of the female of this species strikingly resembles the artist's legendary moustache".A gene of the bacterium Proteus mirabilis that causes urinary tract infections was in 1995 named zapA by three biologists from Maryland. In their scientific article, they "especially thank the late Frank Zappa for inspiration and assistance with genetic nomenclature". Repeating regions of the genome of the human tumor virus KSHV were named frnk, vnct and zppa in 1996 by the Moore and Chang who discovered the virus. Also, a 143 base pair repeat sequence occurring at two positions was named waka/jwka.
In the late 1990s, American paleontologists Marc Salak and Halard L. Lescinsky discovered a metazoan fossil, and named it Spygori zappania to honor "the late Frank Zappa ... whose mission paralleled that of the earliest paleontologists: to challenge conventional and traditional beliefs when such beliefs lacked roots in logic and reason".In 1994, lobbying efforts initiated by psychiatrist John Scialli led the International Astronomical Union's Minor Planet Center to name an asteroid in Zappa's honor: 3834 Zappafrank. The asteroid was discovered in 1980 by Czechoslovakian astronomer Ladislav Brožek, and the citation for its naming says that "Zappa was an eclectic, self-trained artist and composer ... Before 1989 he was regarded as a symbol of democracy and freedom by many people in Czechoslovakia".
In 1995, a bust of Zappa by sculptor Konstantinas Bogdanas was installed in Vilnius, the Lithuanian capital (54.683, 25.2759). The choice of Zappa was explained as "a symbol that would mark the end of communism, but at the same time express that it wasn't always doom and gloom." A replica was offered to the city of Baltimore in 2008, and on September 19, 2010 — the twenty-fifth anniversary of Zappa's testimony to the U.S. Senate — a ceremony dedicating the replica was held, and the bust was unveiled at a library in the city. 
Question: What tumor virus did Moore and Chang discover?
Output (English): KSHV.