Question:  Isabelle's ghost bat is found in a country that covers how much of the continent's land area?

full_context: Document 1: Northern ghost bat: The northern ghost bat ("Diclidurus albus") is a bat species from South America, Trinidad, and Central America. It is a relatively rare, completely white, insectivorous bat, with an unusual sac at the base of its tail. Specimens infected with rabies have been found in Trinidad.
Document 2: Argentina: Argentina ( ; ] ), officially the Argentine Republic (Spanish: "República Argentina" ), is a federal republic in the southern portion of South America. Sharing the bulk of the Southern Cone with its neighbor Chile to the west, the country is also bordered by Bolivia and Paraguay to the north, Brazil to the northeast, Uruguay and the South Atlantic Ocean to the east, and the Drake Passage to the south. With a mainland area of 2780400 km2 , Argentina is the eighth-largest country in the world, the second largest in Latin America, and the largest Spanish-speaking one. The country is subdivided into twenty-three provinces (Spanish: "provincias" , singular "provincia") and one autonomous city ("ciudad autónoma"), Buenos Aires, which is the federal capital of the nation (Spanish: "Capital Federal" ) as decided by Congress.
Document 3: Brazil: Brazil ( ; Portuguese: "Brasil" ] ), officially the Federative Republic of Brazil (Portuguese: "República Federativa do Brasil" ,    ), is the largest country in both South America and Latin America. As the world's fifth-largest country by area and sixth by population, it is the largest country to have Portuguese as an official language and the only one in the Americas. Bounded by the Atlantic Ocean on the east, Brazil has a coastline of 7491 km It borders all other South American countries except Ecuador and Chile and covers 47.3% of the continent's land area. Its Amazon River basin includes a vast tropical forest, home to diverse wildlife, a variety of ecological systems, and extensive natural resources spanning numerous protected habitats. This unique environmental heritage makes Brazil one of 17 megadiverse countries, and is the subject of significant global interest and debate regarding deforestation and environmental protection.
Document 4: Lesser ghost bat: The lesser ghost bat ("Diclidurus scutatus") is a bat species found in northern Brazil, Colombia, Ecuador, French Guyana, Guyana, Peru, Surinam, and Venezuela.
Document 5: Guyana: Guyana (pronounced or ), officially the Co-operative Republic of Guyana, is a sovereign state on the northern mainland of South America. It is, however, included in the Caribbean region due to its strong cultural, historical, and political ties with other Anglo Caribbean countries and the Caribbean Community (CARICOM). Guyana is bordered by the Atlantic Ocean to the north, Brazil to the south and southwest, Suriname to the east and Venezuela to the west. With 215000 sqkm , Guyana is the fourth-smallest country on mainland South America after Uruguay, Suriname and French Guiana (an overseas region of France).
Document 6: Suriname: Suriname ( , or , also spelled Surinam), officially known as the Republic of Suriname (Dutch: "Republiek Suriname" ] ), is a sovereign state on the northeastern Atlantic coast of South America. It is bordered by French Guiana to the east, Guyana to the west and Brazil to the south. At just under 165000 km2 , it is the smallest country in South America. Suriname has a population of approximately , most of whom live on the country's north coast, in and around the capital and largest city, Paramaribo.
Document 7: Little big-eared bat: The little big-eared bat (Micronycteris megalotis) is a bat species in the order Chiroptera and family Phyllostomidae. It is from South and Central America particularly Colombia, Venezuela, Guyana, French Guiana, Brazil, Peru, Ecuador, Bolivia, Argentina, Paraguay, Suriname and Trinidad. Though its exact population is unknown, it is considered widespread and occurs in protected areas, although its minor threats may be deforestation, but nonetheless is classified Least Concern. It is found in multistratal evergreen forests and dry thorn forests and forages near streams and is found hollow trees, logs, caverns, or houses with groups up to twelve. The head and body length measures at 43.8 mm for males and 44.6 for females and males usually weigh about 5 g while females weigh 5.7 g.
Document 8: Portugal: Portugal (Portuguese: ] ), officially the Portuguese Republic (Portuguese: "República Portuguesa" ] ), is a sovereign state located on the Iberian Peninsula in southwestern Europe. It is the westernmost country of mainland Europe, being bordered to the west and south by the Atlantic Ocean and to the north and east by Spain. The Portugal–Spain border is 1214 km long, making it the longest uninterrupted border within the European Union. The republic also includes the Atlantic archipelagos of the Azores and Madeira, both autonomous regions with their own regional governments.
Document 9: Brosset's big-eared bat: Brosset's big-eared bat ("Micronycteris brosseti") is a bat species from South America. It is found in Brazil, French Guyana, Guyana and Peru. It feeds on insects and sometimes fruit and the exact population is unknown. The only listed threat is deforestation.
Document 10: São Paulo: São Paulo ( ; ] ; "Saint Paul" in English) is a municipality in the southeast region of Brazil. The metropolis is an alpha global city—as listed by the GaWC—and is the most populous city in Brazil and Americas as well as in the Southern Hemisphere. The municipality is also the largest in the Americas and Earth's 12th largest city proper by population. The city is the capital of the surrounding state of São Paulo, one of 26 constituent states of the republic. It is the most populous and wealthiest city in Brazil. It exerts strong international influences in commerce, finance, arts and entertainment. The name of the city honors the Apostle, Saint Paul of Tarsus. The city's metropolitan area of Greater São Paulo ranks as the most populous in Brazil, the 11th most populous on Earth, and largest Portuguese language-speaking city in the world.
Document 11: Borders of Brazil: Brazil is the largest country in South America and borders every country in South America with the exceptions of Chile and Ecuador. The borders of Brazil are the international borders that Brazil shares with neighbouring countries. Brazil has borders with ten different countries, totalling 16885 km , making it the country with the third longest land border behind only China and Russia.
Document 12: Isabelle's ghost bat: Isabelle's ghost bat ("Diclidurus isabella") is a bat species found in northwestern Brazil, Guyana, and Venezuela, and possibly Colombia. It was discovered in October 1916 by Emilie Snethlage, and described by Oldfield Thomas in 1920.
Document 13: Davies's big-eared bat: Davies's big-eared bat or the graybeard bat (Glyphonycteris daviesi) is a species of bat in the family Phyllostomidae. It is named after James (Jim) Davies who discovered it whilst on expedition in French Guiana. It is found in Brazil, Colombia, Costa Rica, Ecuador, French Guiana, Guyana, Honduras, Panama, Peru, Suriname, Trinidad and Tobago, and Venezuela.
Document 14: Ghost bat: The ghost bat ("Macroderma gigas"), also known as the false vampire bat, is a bat native to Australia. The bat is named for the extremely thin membrane of its wings that makes it appear ghostly at night. Ghost bats have grey fur on their backs and pale grey or white fur on their undersides. They have long, narrow wings, but no tail, averaging 11 cm in length. Females are generally smaller than males. Ghost bats have large ears for long distance hearing, and very sharp teeth so they can attack prey.
Document 15: Greater ghost bat: The greater ghost bat ("Diclidurus ingens") is a bat species found in northwestern Brazil, southeastern Colombia, Guyana, Peru, and Venezuela.
ground_truth: 47.3%