Question: Do Cubans speak the language of the worms' first known location in America?

full_context: Document 1: Languages of the United States: Many languages are spoken, or historically have been spoken, in the United States. Today over 500 languages are used by the U.S. population. The most commonly used language is English (specifically, American English), which is the de facto national language of the United States. Since the 1965 Immigration Act, Spanish is the second most common language in the country. The United States does not have an official language, but some state governments recognize specific languages. For instance, the state government of Louisiana offers services and documents in French, as does New Mexico in Spanish. There are many languages indigenous to North America or to U.S. states or holdings in the Pacific region. Hawaiian, although having few native speakers, is an official language along with English of the state of Hawaii. Alaska officializes English and twenty native languages.
Document 2: Spanish language in the United States: The exodus of Salvadorans was a result of both economic and political problems. The largest immigration wave occurred as a result of the Salvadoran Civil War in the 1980s, in which 20–30% of El Salvador's population emigrated. About 50%, or up to 500,000 of those who escaped headed to the United States, which was already home to over 10,000 Salvadorans, making Salvadorans Americans the fourth-largest Hispanic and Latino American group, after the Mexican-American majority, stateside Puerto Ricans, and Cubans.
Document 3: Galápagos Islands: The Galápagos Islands (official name: Archipiélago de Colón, other Spanish name: Las Islas Galápagos, Spanish pronunciation: (las ˈiɦla ɣaˈlapaɣo)), part of the Republic of Ecuador, are an archipelago of volcanic islands distributed on either side of the Equator in the Pacific Ocean surrounding the centre of the Western Hemisphere, 906 km (563 mi) west of continental Ecuador. The islands are known for their vast number of endemic species and were studied by Charles Darwin during the second voyage of HMS Beagle, as his observations and collections contributed to the inception of Darwin's theory of evolution by means of natural selection.
Document 4: San Cristóbal Island: The largest fresh water lake in the archipelago, Laguna El Junco, is located in a crater in the highlands of San Cristóbal, in the southern half of the island. The lake harbors a large population of birdlife, but reaching the lake requires a short uphill walk.  Nearby, La Galapaguera is a breeding station and sanctuary for giant tortoises.
Document 5: Symbiosis: The definition of symbiosis has varied among scientists. Some believe symbiosis should only refer to persistent mutualisms, while others believe it should apply to any type of persistent biological interaction (in other words mutualistic, commensalistic, or parasitic). After 130 years of debate, current biology and ecology textbooks now use the latter "de Bary" definition or an even broader definition (where symbiosis means all species interactions), with the restrictive definition no longer used (in other words, symbiosis means mutualism).
Document 6: Predation: Parasites can at times be difficult to distinguish from grazers. Their feeding behavior is similar in many ways, however they are noted for their close association with their host species. While a grazing species such as an elephant may travel many kilometers in a single day, grazing on many plants in the process, parasites form very close associations with their hosts, usually having only one or at most a few in their lifetime. This close living arrangement may be described by the term symbiosis, "living together", but unlike mutualism the association significantly reduces the fitness of the host. Parasitic organisms range from the macroscopic mistletoe, a parasitic plant, to microscopic internal parasites such as cholera. Some species however have more loose associations with their hosts. Lepidoptera (butterfly and moth) larvae may feed parasitically on only a single plant, or they may graze on several nearby plants. It is therefore wise to treat this classification system as a continuum rather than four isolated forms.
Document 7: Symbiosis: Symbiotic relationships include those associations in which one organism lives on another (ectosymbiosis, such as mistletoe), or where one partner lives inside the other (endosymbiosis, such as lactobacilli and other bacteria in humans or Symbiodinium in corals). Symbiosis is also classified by physical attachment of the organisms; symbiosis in which the organisms have bodily union is called conjunctive symbiosis, and symbiosis in which they are not in union is called disjunctive symbiosis.
Document 8: Spanish colonization of the Americas: Beginning with the 1492 arrival of Christopher Columbus and continuing for over three centuries, the Spanish Empire would expand across the Caribbean Islands, half of South America, most of Central America and much of North America (including present day Mexico, Florida and the Southwestern and Pacific Coastal regions of the United States). It is estimated that during the colonial period (1492 -- 1832), a total of 1.86 million Spaniards settled in the Americas and a further 3.5 million immigrated during the post-colonial era (1850 -- 1950).
Document 9: Galápagos Islands: Galápagos Islands Geography Location Pacific Ocean Coordinates 0 ° 40 ′ S 90 ° 33 ′ W ﻿ / ﻿ 0.667 ° S 90.550 ° W ﻿ / - 0.667; - 90.550 Coordinates: 0 ° 40 ′ S 90 ° 33 ′ W ﻿ / ﻿ 0.667 ° S 90.550 ° W ﻿ / - 0.667; - 90.550 Total islands 21 Major islands 18 Area 7,880 km (3,040 sq mi) Highest elevation 1,707 m (5,600 ft) Highest point Volcán Wolf Administration Ecuador Province Galápagos Capital city Puerto Baquerizo Moreno Demographics Population 26,640 (2012) Pop. density 3 / km (8 / sq mi) Additional information Time zone GALT (UTC - 6) UNESCO World Heritage Site Official name Galápagos Islands Type Natural Criteria vii, viii, ix, x Designated 1978 (2nd session) Reference no. Region Latin America and the Caribbean Extension 2001 and 2003 Endangered 2007 -- 2010
Document 10: 51st state: Cuba, like many Spanish territories, wanted to break free from Spain. A pro-independence movement in Cuba was supported by the U.S., and Cuban guerrilla leaders wanted annexation to the United States, but Cuban revolutionary leader José Martí called for Cuban nationhood. When the U.S. battleship Maine sank in Havana Harbor, the U.S. blamed Spain and the Spanish–American War broke out in 1898. After the U.S. won, Spain relinquished claim of sovereignty over territories, including Cuba. The U.S. administered Cuba as a protectorate until 1902. Several decades later in 1959, the corrupt Cuban government of U.S.-backed Fulgencio Batista was overthrown by Fidel Castro. Castro installed a Marxist–Leninist government allied with the Soviet Union, which has been in power ever since.
Document 11: Galápagos Islands: The Galápagos Islands and their surrounding waters form the Galápagos Province of Ecuador, the Galápagos National Park, and the Galápagos Marine Reserve. The principal language on the islands is Spanish. The islands have a population of slightly over 25,000.
Document 12: Languages of the Falkland Islands: The only official language of the Falkland Islands is English, and this is spoken by almost everyone on a day-to-day basis. Spanish is spoken by 10% of the population, a significant minority. Most of the Spanish speakers are immigrants, foreign workers, and expats, predominantly from Chile and Argentina.
Document 13: Annelid: Earthworms are Oligochaetes that support terrestrial food chains both as prey and in some regions are important in aeration and enriching of soil. The burrowing of marine polychaetes, which may constitute up to a third of all species in near-shore environments, encourages the development of ecosystems by enabling water and oxygen to penetrate the sea floor. In addition to improving soil fertility, annelids serve humans as food and as bait. Scientists observe annelids to monitor the quality of marine and fresh water. Although blood-letting is no longer in favor with doctors, some leech species are regarded as endangered species because they have been over-harvested for this purpose in the last few centuries. Ragworms' jaws are now being studied by engineers as they offer an exceptional combination of lightness and strength.
Document 14: Symbiosis: One of the most spectacular examples of obligate mutualism is between the siboglinid tube worms and symbiotic bacteria that live at hydrothermal vents and cold seeps. The worm has no digestive tract and is wholly reliant on its internal symbionts for nutrition. The bacteria oxidize either hydrogen sulfide or methane, which the host supplies to them. These worms were discovered in the late 1980s at the hydrothermal vents near the Galapagos Islands and have since been found at deep-sea hydrothermal vents and cold seeps in all of the world's oceans.
Document 15: Spanish language in the United States: Immigration to the United States of Spanish-speaking Cubans began because of Cuba's political instability upon achieving independence. The deposition of Fulgencio Batista's dictatorship and the ascension of Fidel Castro's government in 1959 increased Cuban immigration to the United States, hence there are some one million Cubans in the United States, most settled in southern and central Florida, while other Cubans live in the Northeastern United States; most are fluent in Spanish. In the city of Miami today Spanish is the first language mostly due to Cuban immigration.
ground_truth: most are fluent in Spanish
sub_queries: What land is near the worms' first known location? Answer: the Galapagos Islands
what language do they speak in the Galapagos Islands Answer: Spanish
Do Cubans speak Spanish in America? Answer: most are fluent in Spanish