Question: Who is the current mayor of the city where Percy Heath died?

full_context: Document 1: Plymouth: Plymouth was granted the dignity of Lord Mayor by King George V in 1935. The position is elected each year by a group of six councillors. It is traditional that the position of the Lord Mayor alternates between the Conservative Party and the Labour Party annually and that the Lord Mayor chooses the Deputy Lord Mayor. Conservative councillor Dr John Mahony is the incumbent for 2015–16.
Document 2: John von Neumann: In 1955, von Neumann was diagnosed with what was either bone or pancreatic cancer. His mother, Margaret von Neumann, was diagnosed with cancer in 1956 and died within two weeks. John had eighteen months from diagnosis till death. In this period von Neumann returned to the Roman Catholic faith that had also been significant to his mother after the family's conversion in 1929–1930. John had earlier said to his mother, "There is probably a God. Many things are easier to explain if there is than if there isn't." Von Neumann held on to his exemplary knowledge of Latin and quoted to a deathbed visitor the declamation "Judex ergo cum sedebit," and ends "Quid sum miser tunc dicturus? Quem patronum rogaturus, Cum vix iustus sit securus?" (When the judge His seat hath taken ... What shall wretched I then plead? Who for me shall intercede when the righteous scarce is freed?)
Document 3: Cincinnati: The present Mayor of Cincinnati is John Cranley. The nine-member city council is composed of Vice Mayor Christopher Smitherman and Councilmembers Tamaya Dennard (President Pro-Tem), David Mann, Amy Murray, Chris Seelbach, P.G. Sittenfeld, Greg Landsman, Jeff Pastor, and Wendell Young. The city manager is Harry Black, and the manager maintains two assistant city managers.
Document 4: Percy Heath: Percy Heath died, after a second bout with bone cancer, two days short of his 82nd birthday, in Southampton, New York.
Document 5: Southampton: Southampton has two large live music venues, the Mayflower Theatre (formerly the Gaumont Theatre) and the Guildhall. The Guildhall has seen concerts from a wide range of popular artists including Pink Floyd, David Bowie, Delirious?, Manic Street Preachers, The Killers, The Kaiser Chiefs, Amy Winehouse, Lostprophets, The Midnight Beast, Modestep, and All Time Low. It also hosts classical concerts presented by the Bournemouth Symphony Orchestra, City of Southampton Orchestra, Southampton Concert Orchestra, Southampton Philharmonic Choir and Southampton Choral Society.
Document 6: Edith Heath: Heath Ceramics was purchased by Robin Petravic and Catherine Bailey in 2003. Edith Heath died on December 27, 2005 at her home in Tiburon, California.
Document 7: Pontus Segerström: He died of a brain tumor, 76 days after his last Allsvenskan game for IF Brommapojkarna, which he played as the captain.
Document 8: Shelby Grant: Grant died of a brain aneurysm in Westlake Village, California on June 25, 2011 at the age of 74. Everett died from lung cancer on July 24, 2012 at the age of 75, a little over a year after Grant's death.
Document 9: Southampton: Southampton City Council consists of 48 councillors, 3 for each of the 16 wards. Council elections are held in early May for one third of the seats (one councillor for each ward), elected for a four-year term, so there are elections three years out of four. Since the 2015 council elections, the composition of the council is:
Document 10: Karl Popper: Popper died of "complications of cancer, pneumonia and kidney failure" in Kenley at the age of 92 on 17 September 1994. He had been working continuously on his philosophy until two weeks before, when he suddenly fell terminally ill. After cremation, his ashes were taken to Vienna and buried at Lainzer cemetery adjacent to the ORF Centre, where his wife Josefine Anna Popper (called ‘Hennie’) had already been buried. Popper's estate is managed by his secretary and personal assistant Melitta Mew and her husband Raymond. Popper's manuscripts went to the Hoover Institution at Stanford University, partly during his lifetime and partly as supplementary material after his death. Klagenfurt University possesses Popper's library, including his precious bibliophilia, as well as hard copies of the original Hoover material and microfilms of the supplementary material. The remaining parts of the estate were mostly transferred to The Karl Popper Charitable Trust. In October 2008 Klagenfurt University acquired the copyrights from the estate.
Document 11: Southampton: The city has a Mayor and is one of the 16 cities and towns in England and Wales to have a ceremonial sheriff who acts as a deputy for the Mayor. The current and 793rd Mayor of Southampton is Linda Norris. Catherine McEwing is the current and 578th sherriff. The town crier from 2004 until his death in 2014 was John Melody, who acted as master of ceremonies in the city and who possessed a cry of 104 decibels.
Document 12: Southampton: The city has undergone many changes to its governance over the centuries and once again became administratively independent from Hampshire County as it was made into a unitary authority in a local government reorganisation on 1 April 1997, a result of the 1992 Local Government Act. The district remains part of the Hampshire ceremonial county.
Document 13: The Dramatics: Their members at this time were Ron Banks (who died of a heart attack on March 4, 2010, at the age of 58), William ``Wee Gee ''Howard (who died of a heart attack on February 22, 2000, at the age of 49), Elbert Wilkins (who died of a heart attack on December 13, 1992, at the age of 45), Willie Ford, Larry Demps and keyboardist James Mack Brown (who died on November 28, 2008, at the age of 58).
Document 14: Southampton: Southampton (i/saʊθˈæmptən, -hæmptən/) is the largest city in the ceremonial county of Hampshire on the south coast of England, and is situated 75 miles (121 km) south-west of London and 19 miles (31 km) north-west of Portsmouth. Southampton is a major port and the closest city to the New Forest. It lies at the northernmost point of Southampton Water at the confluence of the River Test and River Itchen, with the River Hamble joining to the south of the urban area. The city, which is a unitary authority, has an estimated population of 253,651. The city's name is sometimes abbreviated in writing to "So'ton" or "Soton", and a resident of Southampton is called a Sotonian.
Document 15: Southampton: Southampton as a Port and city has had a long history of administrative independence of the surrounding County; as far back as the reign of King John the town and its port were removed from the writ of the King's Sheriff in Hampshire and the rights of custom and toll were granted by the King to the burgesses of Southampton over the port of Southampton and the Port of Portsmouth; this tax farm was granted for an annual fee of £200 in the charter dated at Orival on 29 June 1199. The definition of the port of Southampton was apparently broader than today and embraced all of the area between Lymington and Langstone. The corporation had resident representatives in Newport, Lymington and Portsmouth. By a charter of Henry VI, granted on 9 March 1446/7 (25+26 Hen. VI, m. 32), the mayor, bailiffs and burgesses of the towns and ports of Southampton and Portsmouth became a County incorporate and separate from Hampshire.
ground_truth: Linda Norris
sub_queries: In what city did Percy Heath die? Answer: Southampton
Who's the current Mayor of Southampton ? Answer: Linda Norris