Question: What was the original name of the island that is located off the coast of Sarasota, Florida and is home to Turtle Beach?

Context paragraphs:
Longboat Key, Florida: Longboat Key is a town in Manatee and Sarasota counties along the central west coast of the U.S. state of Florida, located on and coterminous with the barrier island of the same name.  Longboat Key is south of Anna Maria Island, between Sarasota Bay and the Gulf of Mexico.  It is almost equally divided between Manatee and Sarasota counties.  The town of Longboat Key was incorporated in 1955 and is part of the Bradenton–Sarasota–Venice Metropolitan Statistical Area.

Sarasota Orchestra: Sarasota Orchestra, formerly known as the Florida West Coast Symphony, is an American symphony orchestra located in Sarasota, Florida, which performs symphonic and chamber works for the Manatee, Sarasota, and Charlotte counties.  The 80-member orchestra performs more than 100 classical, pops and family concerts each year, and is the "oldest continuing orchestra" in the state of Florida.

Florida State Road 789: State Road 789 (SR 789) is a 17.5-mile-long road along the Florida’s Gulf Coast that spans Bird Key, St. Armands Key, and Lido Key, in Sarasota; Longboat Key (as Gulf of Mexico Drive); and Anna Maria Island.  The southern terminus is the intersection of the John Ringling Causeway and the Tamiami Trail (US 41-SR 45) in Sarasota; the northern terminus is the intersection of Gulf Drive, North and Manatee Avenue., West (SR 64) in Holmes Beach.  Much of the northernmost five miles (8 km) has been designated Bradenton Beach Scenic Highway.

G.A. Miller: G.A. Miller Inc also known as GA Miller Construction Co. was a Tampa, Florida construction company.  The company built twenty Kress stores including in St. Petersburg, Florida; Lakeland, Florida; Tampa; Ybor City; Fort Myers; Daytona Beach; as well as in North and South Carolina; Georgia; Alabama; Spokane, Washington; and Billings, Montana.  The company also constructed the Edwards Theater (now the Sarasota Opera House), the original Sarasota Herald building (now the Sarasota Woman's Exchange), and the Mira Mar Hotel (demolished in 1982).

Siesta Key, Florida: Siesta Key is a barrier island off the southwest coast of the U.S. state of Florida.  It is situated between Roberts Bay and the Gulf of Mexico.  A portion of it lies within the city boundary of Sarasota, but the majority of the key is a census-designated place (CDP) in Sarasota County.  After the probable Amerindian name of "Zarazote" for the area and the bay, the key was originally named "Sarasota Key" by European cartographers during exploration beginning in 1513.  That name can be seen on maps from the early 18th century as well as on all local maps drawn before the name change to "Siesta Key" in the 1920s.  The population was 6,565 at the 2010 census.

Palmer Ranch: Palmer Ranch is a massive real estate development in Sarasota County, Florida between the cities of Sarasota and Osprey.  Located very roughly by Clark Road, Tamiami Trail and Interstate 75, it was part of the original 80,000 acres (320 km²) of Florida land purchased by Bertha Honoré Palmer, wife of Chicago department store tycoon Potter Palmer, best known for the famed Palmer House hotel in Chicago.  It is one of many former Florida cattle ranches developed into planned communities; the other most notable ranch conversion in the Sarasota Bradenton area is Lakewood Ranch.

Sarasota Reds: The Sarasota Reds were a professional minor league baseball team, located in Sarasota, Florida, as a member of the Florida State League.  However team originally started play in Sarasota as the Sarasota White Sox in 1989.  They remained in the city for the next 21 seasons, going through a series of name changes due to their affiliation changes.  They were known as the White Sox from 1989–1993, as the Sarasota Red Sox from 1994–2004, and the Reds from 2004–2009.  In Sarasota, the team played in Payne Park (1989) and then Ed Smith Stadium (1990–2009).  They won two division championships, in 1989 and 1992, and made playoff appearances in 1989, 1991, 1992, 1994, and 2007.

Turtle Beach (film): Turtle Beach (a.k.a.  The Killing Beach) is a 1992 Australian film directed by Stephen Wallace and starring Greta Scacchi and Joan Chen.  The screenplay was written by Ann Turner, based on the novel of the same name by Blanche d'Alpuget.  It caused controversy in Malaysia where the Government took exception to scenes of Malays executing refugees.

Turtle Beach (Florida): Turtle Beach is a public beach located on South Siesta Key in Sarasota, Florida.  Turtle Beach is known for the large number of sea turtles that nest on the shore.  It has roughly 2,600 feet of beach front that is accessible to the public as well as camping, picnic areas, and a children play area.  There are two boat ramps to launch boats on the lagoon side of the property.  The beach has had problems with erosion.  Sharks have been present in the ocean at the beach.

Turtle Beach Corporation: Turtle Beach Corporation is an American sound card and headset manufacturer.  In 1995, the company merged with Voyetra, a company that made custom software for sound cards, to form Voyetra Turtle Beach, then headquartered in Valhalla, New York.  In 2014, Voyetra Turtle Beach merged with Parametric Sound, retaining the Parametic Sound name until the name was changed to Turtle Beach Corporation.

Supporting paragraphs: Turtle Beach (Florida) Siesta Key, Florida
Answer: Sarasota Key