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: In cryptography, a block cipher is a deterministic algorithm operating on fixed-length groups of bits, called "blocks", with an unvarying transformation that is specified by a symmetric key. Block ciphers operate as important elementary components in the design of many cryptographic protocols, and are widely used to implement encryption of bulk data., The Ecuadorian horned frog ( Ceratophrys testudo ) is a species of frog in the Ceratophryidae family . It is endemic to Ecuador . Its natural habitats are subtropical or tropical moist montane forests and intermittent freshwater marshes ., Ecuador, officially the Republic of Ecuador (which literally translates as "Republic of the Equator"), is a representative democratic republic in northwestern South America, bordered by Colombia on the north, Peru on the east and south, and the Pacific Ocean to the west. Ecuador also includes the Galápagos Islands in the Pacific, about west of the mainland., The Cretaceous is a geologic period and system that spans 79 million years from the end of the Jurassic Period million years ago (Mya) to the beginning of the Paleogene Period Mya. It is the last period of the Mesozoic Era. The Cretaceous Period is usually abbreviated K, for its German translation "Kreide" (chalk)., In cryptography, FROG is a block cipher authored by 
Georgoudis, Leroux and Chaves. The algorithm can work with any block size between 8 and 128 bytes, and supports key sizes between 5 and 125 bytes. The algorithm consists of 8 rounds and has a very complicated key schedule. , The byte is a unit of digital information that most commonly consists of eight bits. Historically, the byte was the number of bits used to encode a single character of text in a computer and for this reason it is the smallest addressable unit of memory in many computer architectures.
The size of the byte has historically been hardware dependent and no definitive standards existed that mandated the size. The "de facto" standard of eight bits is a convenient power of two permitting the values 0 through 255 for one byte. The international standard IEC 80000-13 codified this common meaning. Many types of applications use information representable in eight or fewer bits and processor designers optimize for this common usage. The popularity of major commercial computing architectures has aided in the ubiquitous acceptance of the 8-bit size., In geology, a supercontinent is the assembly of most or all of Earth's continental blocks or cratons to form a single large landmass. However, the definition of a supercontinent can be ambiguous. Many earth scientists, such as P.F. Hoffman (1999), use the term "supercontinent" to mean "a clustering of nearly all continents". This definition leaves room for interpretation when labeling a continental body and is easier to apply to Precambrian times. Using the first definition provided here, Gondwana (a.k.a. Gondwanaland) is not considered a supercontinent, because the landmasses of Baltica, Laurentia and Siberia also existed at the same time but physically separate from each other. The landmass of Pangaea is the collective name describing all of these continental masses when they were in proximity to one another. This would classify Pangaea as a supercontinent. According to the definition by Rogers and Santosh (2004), a supercontinent does not exist today. Supercontinents have assembled and dispersed multiple times in the geologic past (see table). The positions of continents have been accurately determined back to the early Jurassic. However, beyond , continental positions are much less certain., The Ceratophryidae, known as common horned frogs, are a family of frogs found in South America. It is a relatively small family with three extant genera and 12 species. However, fossils of the giant "Beelzebufo" from Cretaceous Madagascar suggest the taxon may have once ranged throughout the prehistoric supercontinent of Gondwana., The Equator usually refers to an imaginary line on the Earth's surface equidistant from the North Pole and South Pole, dividing the Earth into the Northern Hemisphere and Southern Hemisphere. The Equator is about long; some 78.7% lies across water and 21.3% over land., Madagascar, officially the Republic of Madagascar, and previously known as the Malagasy Republic, is an island country in the Indian Ocean, off the coast of Southeast Africa. The nation comprises the island of Madagascar (the fourth-largest island in the world), and numerous smaller peripheral islands. Following the prehistoric breakup of the supercontinent Gondwana, Madagascar split from the Indian peninsula around 88 million years ago, allowing native plants and animals to evolve in relative isolation. Consequently, Madagascar is a biodiversity hotspot; over 90% of its wildlife is found nowhere else on Earth. The island's diverse ecosystems and unique wildlife are threatened by the encroachment of the rapidly growing human population and other environmental threats., The Pacific Ocean is the largest of the Earth's oceanic divisions. It extends from the Arctic Ocean in the north to the Southern Ocean (or, depending on definition, to Antarctica) in the south and is bounded by Asia and Australia in the west and the Americas in the east., Colombia (or ), officially the Republic of Colombia, is a transcontinental country largely situated in the northwest of South America, with territories in Central America. Colombia shares a border to the northwest with Panama, to the east with Venezuela and Brazil and to the south with Ecuador and Peru. It shares its maritime limits with Costa Rica, Nicaragua, Honduras, Jamaica, the Dominican Republic and Haiti. It is a unitary, constitutional republic comprising thirty-two departments. The territory of what is now Colombia was originally inhabited by indigenous peoples including the Muisca, the Quimbaya and the Tairona., Beelzebufo ampinga (or ) was a particularly large species of prehistoric frog described in 2008. Common names assigned by the popular media include devil frog, devil toad, and the frog from hell., Cryptography or cryptology (from Greek "kryptós", "hidden, secret"; and "graphein", "writing", or "-logia", "study", respectively) is the practice and study of techniques for secure communication in the presence of third parties called adversaries. More generally, cryptography is about constructing and analyzing protocols that prevent third parties or the public from reading private messages; various aspects in information security such as data confidentiality, data integrity, authentication, and non-repudiation are central to modern cryptography. Modern cryptography exists at the intersection of the disciplines of mathematics, computer science, and electrical engineering. Applications of cryptography include ATM cards, computer passwords, and electronic commerce., In cryptography, the so-called product ciphers are a certain kind of ciphers, where the (de-)ciphering of data is done in "rounds". The general setup of each round is the same, except for some hard-coded parameters and a part of the cipher key, called a subkey. A key schedule is an algorithm that, given the key, calculates the subkeys for these rounds., 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)., The Galápagos Islands (official name: "Archipiélago de Colón", other Spanish name: "Islas Galápagos") are an archipelago of volcanic islands distributed on either side of the Equator in the Pacific Ocean surrounding the centre of the Western Hemisphere, west of continental Ecuador, of which they are a part. The islands are known for their vast number of endemic species and were studied by Charles Darwin during the voyage of the "Beagle", as his observations and collections contributed to the inception of Darwin's theory of evolution by natural selection., In paleogeography, Gondwana,
also Gondwanaland, is the name given to an ancient supercontinent. It is believed to have sutured between about 573 and 510 million years ago (Mya), joining East Gondwana to West Gondwana. Gondwana formed prior to Pangaea, and later became part of it., Peru , officially the Republic of Peru, is a country in western South America. It is bordered in the north by Ecuador and Colombia, in the east by Brazil, in the southeast by Bolivia, in the south by Chile, and in the west by the Pacific Ocean. Peru is an extremely biodiverse country with habitats ranging from the arid plains of the Pacific coastal region in the west to the peaks of the Andes mountains vertically extending from the north to the southeast of the country to the tropical Amazon Basin rainforest in the east with the Amazon river., Subject: ecuadorian horned frog, Relation: instance_of, Options: (A) algorithm (B) assembly (C) block cipher (D) border (E) cipher (F) coast (G) collective (H) communication (I) computer (J) constitutional republic (K) continent (L) country (M) cryptography (N) data (O) deterministic algorithm (P) eight (Q) era (R) family (S) geology (T) hotspot (U) information (V) international standard (W) key (X) landmass (Y) line (Z) mathematics ([) model (\) name (]) number (^) ocean (_) official (`) period (a) population (b) power of two (c) practice (d) processor (e) product (f) public (g) reference (h) region (i) representative (j) republic (k) river (l) single (m) size (n) species (o) study (p) subcontinent (q) supercontinent (r) table (s) taxon (t) three (u) transcontinental country (v) work (w) writing
taxon

Context: The is a period in Japanese history marked by social upheaval, political intrigue and near-constant military conflict. Japanese historians named it after the otherwise unrelated Warring States period in China. It came to an end when all political power was unified under the Tokugawa shogunate., , also known as Temmon, was a after "Kyroku" and before "Kji". This period spanned from July 1532 through October 1555. The reigning emperor was ., Honda Tadatoki (   , May 11 , 1596 -- June 30 , 1626 ) was a Japanese daimyo of the early Edo period . Tadatoki was born as the eldest son of Honda Tadamasa . His mother Kumahime was a granddaughter of Tokugawa Ieyasu and Oda Nobunaga . In 1616 , Tadatoki married Senhime , another granddaughter of Ieyasu , and who had been married to Toyotomi Hideyori before Hideyori 's death the Siege of Osaka . As a dowry of his new bride , Tadatoki received 100,000 koku . Tadatoki also sponsored the swordsman Miyamoto Musashi for a time . Musashi taught swordsmanship to Tadatoki 's retainers ; Musashi 's adopted son Mikinosuke served Tadatoki as a page . Tadatoki died of tuberculosis in 1626 . Miyamoto Mikinosuke committed junshi soon afterward , choosing to follow his lord in death, The was a series of battles undertaken by the Tokugawa shogunate against the Toyotomi clan, and ending in that clan's destruction. Divided into two stages (Winter Campaign and Summer Campaign), and lasting from 1614 to 1615, the siege put an end to the last major armed opposition to the shogunate's establishment. The end of the conflict is sometimes called the , because the era name was changed from Keich to Genna immediately following the siege., The was a Japanese samurai clan that claimed descent from the Minamoto clan. It originated in and took its name from Matsudaira village, in Mikawa Province (modern-day Aichi Prefecture). Over the course of its history, the clan produced many branches, most of which are also in Mikawa Province. In the 16th century, the main Matsudaira line experienced a meteoric rise to success during the direction of Matsudaira Motoyasu, who changed his name to Tokugawa Ieyasu and became the first Tokugawa shogun. Ieyasu's line formed what became the Tokugawa clan; however, the branches retained the Matsudaira surname. Other branches were formed in the decades after Ieyasu, which bore the Matsudaira surname. Some of those branches were also of "daimy" status., Tadamasa's first battle was during the Siege of Odawara, in 1590; he also fought at the Battle of Sekigahara in 1600. After his father's retirement in 1609, he succeeded to the Honda family headship, becoming the second generation lord of the Kuwana Domain. Several years later, he took part in the Siege of Osaka, and received the Himeji Domain, with 150,000 koku of revenues, as a reward., , first called Jbei from his clan and later from his title, was a samurai and general who lived during the Sengoku period of Feudal Japan. His full name was thus Akechi Jbei Minamoto-no-Mitsuhide (  )., Early life (15431556).
Tokugawa Ieyasu was born in Okazaki Castle in Mikawa on the 26th day of the twelfth month of the eleventh year of Tenbun, according to the Japanese calendar. Originally named Matsudaira Takechiyo ( ), he was the son of Matsudaira Hirotada ( ), the "daimy" of Mikawa of the Matsudaira clan, and Odai-no-kata (, Lady Odai), the daughter of a neighbouring samurai lord, Mizuno Tadamasa ( ). His mother and father were step-siblings. They were just 17 and 15 years old, respectively, when Ieyasu was born. Two years later, Odai-no-kata was sent back to her family and the couple never lived together again. As both husband and wife remarried and both went on to have further children, Ieyasu in the end had 11 half-brothers and sisters., Japan ("Nippon" or "Nihon" ; formally "" or "Nihon-koku", means "State of Japan") is a sovereign island nation in Eastern Asia. Located in the Pacific Ocean, It is lying off the eastern coast of the Asia Mainland (east of China, Korea, Russia) and stretching from the Sea of Okhotsk in the north to the East China Sea and near Taiwan in the southwest. , History.
During the late Heian period and Muromachi period, the area of modern Kuwana was known as and was a major seaport on the east coast of Japan, controlled by a guild of merchants. The poet Socho described it in 1515 as a major city with over a thousand houses, temples and inns. During the Sengoku period, the area came under the control of Oda Nobunaga, who assigned it to his retainer, Takigawa Kazumasu. After Nobunagas death, the area came under the control of Toyotomi Hideyoshi, who initially installed Nobunagas younger son Oda Nobukatsu as ruler as all of Ise Province. However, following the Battle of Odawara, Hideyoshi demoted Oda Nobukatsu, divided Ise Province into several domains, and assigned Hitotsuyanagi Naomori as ruler of Kuwana. In 1595, the area was reassigned to Ujiie Yukihiro as a 22,000 "koku" domain. Ujiie Yukihiro sided with the pro-Toyotomi armies in the Battle of Sekigahara and was dispossessed by Tokugawa Ieyasu., He is best known for being the father of Tokugawa Ieyasu, founder of the Tokugawa Shogunate., KOKU (100.3 FM)  branded as Hit Radio 100  is a commercial contemporary hit radio (CHR) radio station licensed to Hagåtña, Guam. It is owned and operated by Moy Communications Inc. , Japanese calendar types have included a range of official and unofficial systems. At present, Japan uses the Gregorian calendar together with year designations stating the year of the reign of the current Emperor., Historical context.
The goal of national unification and a return to the comparative political stability of the earlier Muromachi period was widely shared by the multitude of autonomous "daimys" during the Sengoku period. Oda Nobunaga was the first for whom this goal seemed attainable. Nobunaga had gained control over most of Honshu (see map below) before his death during the 1582 Honn-ji incident, a coup attempt executed by Nobunaga's vassal, Akechi Mitsuhide. It is not certain whether Nobunaga was killed in the attack or else committed seppuku. The motivations behind Mitsuhide's betrayal was never revealed to anyone who survived the incident, and has been a subject of debate and conjecture ever since the incident., The refers to the forced suicide on June 21, 1582, of Japanese daimy Oda Nobunaga at the hands of his samurai general Akechi Mitsuhide. This occurred in Honn-ji, a temple in Kyoto, ending Nobunaga's quest to consolidate centralized power in Japan under his authority., Subject: honda tadatoki, Relation: occupation, Options: (A) emperor (B) father (C) founder (D) major (E) military (F) official (G) poet (H) radio (I) samurai (J) sovereign (K) taiwan
samurai

Context: Constantine XI Dragases Palaiologos, Latinized as Palaeologus ("Knstantinos XI Dragass Palaiologos"; 8 February 1405  29 May 1453) was the last reigning Byzantine Emperor, reigning as a member of the Palaiologos dynasty from 1449 to his death in battle at the fall of Constantinople. Following his death, he became a legendary figure in Greek folklore as the "Marble Emperor" who would awaken and recover the Empire and Constantinople from the Ottomans. His death marked the end of the Roman Empire, which had continued in the East for 977 years after the fall of the Western Roman Empire., George Sphrantzes , also Phrantzes or Phrantza ( Greek :   or  ; 1401 -- c. 1478 ) was a late Byzantine Greek historian and Imperial courtier . He was an attendant to Emperor Manuel II Palaiologos , protovestiarites ( `` Lord of the Imperial Wardrobe '' ) under John VIII Palaiologos , and a close confident to Constantine XI Palaiologos . He was an eyewitness of the Fall of Constantinople in 1453 , made a slave by the victorious Turks , but ransomed shortly afterwards . Sphrantzes served the surviving members of the Palaiologian family for the next several years until taking monastic vows in 1472 . It was while a monk he wrote his history , which ends with the notice of Sultan Mehmed II 's attempt to capture Naupaktos , which he dates to the summer of 1477 ; Sphrantzes is assumed to have died not long after that event ., Byzantium ("Byzántion") was an ancient Greek colony on the site that later became Constantinople, and later still Istanbul. Byzantium was colonised by the Greeks from Megara in ., Tonsure is the practice of cutting or shaving some or all of the hair on the scalp, as a sign of religious devotion or humility. The term originates from the Latin word "tnsra" (meaning "clipping" or "shearing") and referred to a specific practice in medieval Catholicism, abandoned by papal order in 1972. Current usage more generally refers to cutting or shaving for monks, devotees, or mystics of any religion as a symbol of their renunciation of worldly fashion and esteem. "Tonsure" also refers to the secular practice of shaving all or part of the scalp to show support or sympathy, or to designate mourning., The Roman Empire (Koine and Medieval Greek:   , tr. ) was the post-Roman Republic period of the ancient Roman civilization, characterized by government headed by emperors and large territorial holdings around the Mediterranean Sea in Europe, Africa and Asia. The city of Rome was the largest city in the world BC AD, with Constantinople (New Rome) becoming the largest around 500 AD, and the Empire's populace grew to an estimated 50 to 90 million inhabitants (roughly 20% of the world's population at the time). The 500-year-old republic which preceded it was severely destabilized in a series of civil wars and political conflict, during which Julius Caesar was appointed as perpetual dictator and then assassinated in 44 BC. Civil wars and executions continued, culminating in the victory of Octavian, Caesar's adopted son, over Mark Antony and Cleopatra at the Battle of Actium in 31 BC and the annexation of Egypt. Octavian's power was then unassailable and in 27 BC the Roman Senate formally granted him overarching power and the new title "Augustus", effectively marking the end of the Roman Republic., Constantinople  was the capital city of the Roman/Byzantine Empire (3301204 and 12611453), and also of the brief Latin (12041261), and the later Ottoman (14531923) empires. It was reinaugurated in 324 AD from ancient Byzantium as the new capital of the Roman Empire by Emperor Constantine the Great, after whom it was named, and dedicated on 11 May 330 AD., Manuel II Palaiologos or Palaeologus (Greek:   , "Manoul II Palaiologos") (27 June 1350  21 July 1425) was Byzantine Emperor from 1391 to 1425. Shortly before his death he was tonsured a monk and received the name "Matthew". He is commemorated on July 21., The Ottoman Empire ('; Modern Turkish: ' or '), also known as the Turkish Empire, Ottoman Turkey, was an empire founded at the end of the thirteenth century in northwestern Anatolia in the vicinity of Bilecik and Söüt by the Oghuz Turkish tribal leader Osman. After 1354, the Ottomans crossed into Europe, and with the conquest of the Balkans the Ottoman Beylik was transformed into a transcontinental empire. The Ottomans ended the Byzantine Empire with the 1453 conquest of Constantinople by Mehmed the Conqueror., The Fall of Constantinople ('; Conquest of Istanbul) was the capture of the capital of the Byzantine Empire by an invading army of the Ottoman Empire on 29 May 1453. The Ottomans were commanded by the then 21-year-old Mehmed the Conqueror, the seventh sultan of the Ottoman Empire, who defeated an army commanded by Byzantine Emperor Constantine XI Palaiologos. The conquest of Constantinople followed a 53-day siege that had begun on 6 April 1453., Subject: george sphrantzes, Relation: languages_spoken_or_written, Options: (A) ancient greek (B) greek (C) latin (D) medieval greek (E) turkish

ancient greek