Given the task definition and input, reply with output. In this task, you are given a context, a subject, a relation, and many options. Based on the context, from the options select the object entity that has the given relation with the subject. Answer with text (not indexes).

Context: Argentina, officially the Argentine Republic, is a federal republic in the southern half 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 , 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 (singular "provincia") and one autonomous city ("ciudad autónoma"), Buenos Aires, which is the federal capital of the nation as decided by Congress.
The provinces and the capital have their own constitutions, but exist under a federal system., The Battle of Curupayty was a key battle in the Paraguayan War . On the morning of September 22 , 1866 , the joint force of the Imperial ( Brazilian ) , Argentine and Uruguayan armies attacked Paraguayan fortified trenches on Curupaity . The Paraguayans were led by General José E. Díaz . This position was held by 5,000 men and 49 cannons , some of them in hidden places out of the attackers view . The Brazilian Navy gave support to the 20,000 assailants , but the ships had to keep some distance from the guns at the fortress of Humaitá , which led to the lack of accuracy and impact of the ship 's fire . The Brazilian Navy failure was crucial at the later ground battle result . The Paraguayans were also successful in misleading their foes : a trench drew most of the Brazilian fire , but the Paraguayan troops were located elsewhere . Around 20 percent of the almost 20,000 allied ( Brazilian and Argentine ) troops involved in the attack were lost ; Paraguay lost less than a hundred men . The utter failure resulted in the change of the Allied command . Paraguay 's biggest success in the ultimately disastrous war was limited because its military leader Francisco Solano López did not counterattack the defeated Allies . Not even a general as celebrated as Díaz would attack without López 's orders . Ultimately , the battle of Curupayty was merely a sidenote and temporary success in what would eventually become a near - extermination of the Paraguayan people ., The Empire of Brazil was a 19th-century state that broadly comprised the territories which form modern Brazil and Uruguay. Its government was a representative parliamentary constitutional monarchy under the rule of Emperors Dom Pedro I and his son Dom Pedro II. A colony of the Kingdom of Portugal, Brazil became the seat of the Portuguese colonial Empire in 1808, when the Portuguese Prince regent, later King Dom João VI, fled from Napoleon's invasion of Portugal and established himself and his government in the Brazilian city of Rio de Janeiro. João VI later returned to Portugal, leaving his eldest son and heir, Pedro, to rule the Kingdom of Brazil as regent. On 7 September 1822, Pedro declared the independence of Brazil and, after waging a successful war against his father's kingdom, was acclaimed on 12 October as Pedro I, the first Emperor of Brazil. The new country was huge but sparsely populated and ethnically diverse., The Americas, also collectively called America, encompass the totality of the continents of North America and South America. Together they make up most of Earth's western hemisphere and comprise the "New World". , The Paraguayan War, also known as the War of the Triple Alliance and the Great War in Paraguay, was a South American war fought from 1864 to 1870 between Paraguay and the Triple Alliance of Argentina, the Empire of Brazil, and Uruguay. With an estimated 400,000 deaths, the war was the deadliest and bloodiest in Latin America's history. It particularly devastated Paraguay, which suffered catastrophic losses in population - almost 70% of its adult male population died, according to some counts - and was forced to cede territory to Argentina and Brazil. According to some estimates, Paraguay's pre-war population of 525,000 was reduced to 221,000, of which only 28,000 were men., José Eduvigis Díaz Vera (October 17, 1833  February 7, 1867) was a celebrated Paraguayan general. Díaz was born in the town of Cerro Verá east of Pirayú in the department of Paraguarí. His parents were named Juan Andrés Díaz and Dolores Vera., A navy or maritime force is a fleet of waterborne military vessels (watercraft) and its associated naval aviation, both sea-based and land-based. It is the branch of a nation's armed forces principally designated for naval and amphibious warfare; namely, lake-borne, riverine, littoral, or ocean-borne combat operations and related functions. It includes anything conducted by surface ships, amphibious ships, submarines, and seaborne aviation, as well as ancillary support, communications, training, and other fields; recent developments have included space-related operations. The strategic offensive role of a navy is projection of force into areas beyond a country's shores (for example, to protect sea-lanes, ferry troops, or attack other navies, ports, or shore installations). The strategic defensive purpose of a navy is to frustrate seaborne projection-of-force by enemies. The strategic task of the navy also may incorporate nuclear deterrence by use of Submarine-launched ballistic missiles. Naval operations can be broadly divided between riverine and littoral applications (brown-water navy), open-ocean applications (blue-water navy), and something in between (green-water navy), although these distinctions are more about strategic scope than tactical or operational division., The Brazilian Navy is the naval service branch of the Brazilian Armed Forces, responsible for conducting naval operations. The Brazilian Navy is the largest navy in South America and in Latin America, and the second largest navy in the Americas, after the United States Navy., Uruguay, officially the Oriental Republic of Uruguay, is a country in the southeastern region of South America. It borders Argentina to its west and Brazil to its north and east, with the Río de la Plata (River of Silver) to the south and with the Atlantic Ocean to the southeast. Uruguay is home to an estimated 3.42 million people, of whom 1.8 million live in the metropolitan area of its capital and largest city, Montevideo. With an area of approximately , Uruguay is geographically the second-smallest nation in South America, only larger in size than Suriname., Paraguarí (Guaraní: Paraguari) is a city, "distrito" and capital of Paraguarí Department in Paraguay, located 66 km from the countrys capital, Asunción. At the 2002 census it had a population of 22,154., The Brazilian Armed Forces is the unified military organization comprising the Brazilian Army (including the Brazilian Army Aviation), the Brazilian Navy (including the Brazilian Marine Corps and Brazilian Naval Aviation) and the Brazilian Air Force., South America is a continent located in the western hemisphere, mostly in the southern hemisphere, with a relatively small portion in the northern hemisphere. It is also considered a subcontinent of the Americas, which is the model used in nations that speak Romance languages. The reference to South America instead of other regions (like Latin America or the Southern Cone) has increased in the last decades due to changing geopolitical dynamics (in particular, the rise of Brazil)., Latin America is a group of countries and dependencies in the Americas where Romance languages are predominant. The term originated in 19th century France as "Amérique latine" to consider French-speaking territories in the Americas (Haiti, French Guiana, Martinique, Guadeloupe, Saint Martin, Saint Barthélemy) along with the larger group of countries where Spanish and Portuguese languages prevailed. It is therefore broader than the terms Ibero-America or Hispanic Americathough it usually excludes French Canada and modern French Louisiana., Paraguay, officially the Republic of Paraguay, is a landlocked country in central South America, bordered by Argentina to the south and southwest, Brazil to the east and northeast, and Bolivia to the northwest. Paraguay lies on both banks of the Paraguay River, which runs through the center of the country from north to south. Due to its central location in South America, it is sometimes referred to as "Corazón de Sudamérica" ("Heart of South America"). Paraguay is one of the two landlocked countries (the other is Bolivia) that lie outside Afro-Eurasia. Paraguay is the smallest landlocked country in the Americas., The United States Navy (USN) is the naval warfare service branch of the United States Armed Forces and one of the seven uniformed services of the United States. The U.S. Navy is the largest, most capable navy in the world, with the highest combined battle fleet tonnage. The U.S. Navy has the world's largest aircraft carrier fleet, with ten in service, two in the reserve fleet, and three new carriers under construction. The service has 323,792 personnel on active duty and 108,515 in the Navy Reserve. It has 274 deployable combat vessels and more than 3,700 aircraft in active service ., Subject: battle of curupayty, Relation: part_of, Options: (A) 19th century (B) aircraft carrier (C) armed forces (D) army (E) atlantic ocean (F) brazilian armed forces (G) center (H) city (I) congress (J) country (K) dynamics (L) earth (M) empire (N) eurasia (O) february (P) government (Q) green (R) latin america (S) may (T) naval aviation (U) naval service (V) navy (W) north america (X) ocean (Y) october (Z) organization ([) river (\) romance languages (]) silver (^) southern cone (_) submarine (`) system (a) the americas (b) the republic (c) united states navy (d) war (e) war of the triple alliance (f) warfare (g) watercraft
war of the triple alliance