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).

Q: Context: A voice type is a particular human singing voice identified as having certain qualities or characteristics of vocal range, vocal weight, tessitura, vocal timbre, and vocal transition points ("passaggio"), such as breaks and lifts within the voice. Other considerations are physical characteristics, speech level, scientific testing, and vocal register. A singer's voice type is identified by a process known as voice classification, by which the human voice is evaluated and thereby designated into a particular voice type. The discipline of voice classification developed within European classical music and is not generally applicable to other forms of singing. Voice classification is often used within opera to associate possible roles with potential voices. Several different voice classification systems are available to identify voice types, including the German "Fach" system and the choral music system among many others; no system is universally applied or accepted., Maria Malibran ( 24 March 1808 -- 23 September 1836 ) was a Spanish mezzo - soprano who commonly sang both contralto and soprano parts , and was one of the most famous opera singers of the 19th century . Malibran was known for her stormy personality and dramatic intensity , becoming a legendary figure after her death at age 28 . Contemporary accounts of her voice describe its range , power and flexibility as extraordinary ., A soprano is a type of classical female singing voice and has the highest vocal range of all voice types. The soprano's vocal range (using scientific pitch notation) is from approximately middle C (C) = 261Hz to "high A" (A) =880Hz in choral music, or to "soprano C" (C, two octaves above middle C) =1046Hz or higher in operatic music. In four-part chorale style harmony, the soprano takes the highest part, which usually encompasses the melody.
The soprano voice type is generally divided into the coloratura, soubrette, lyric, spinto, and dramatic soprano. The lyric soprano is the most common female singing voice., Singing is the act of producing musical sounds with the voice, and augments regular speech by the use of sustained tonality, rhythm, and a variety of vocal techniques. A person who sings is called a singer or vocalist. Singers perform music (arias, recitatives, songs, etc.) that can be sung with or without accompaniment by musical instruments. Singing is often done in an ensemble of musicians, such as a choir of singers or a band of instrumentalists. Singers may perform as soloists, or accompanied by anything from a single instrument (as in art song or some jazz styles) up to a symphony orchestra or big band. Different singing styles include art music such as opera and Chinese opera, religious music styles such as gospel, traditional music styles, world music, jazz, blues and popular music styles such as pop and rock., A contralto is a type of classical female singing voice whose vocal range is the lowest female voice type.
The contralto's vocal range is fairly rare; similar to, but different from the alto, and almost identical to that of a countertenor, typically between the F below middle C (F in scientific pitch notation) to the second F above middle C (F), although at the extremes some voices can reach the E below middle C (E) or the second B above middle C (B). The contralto voice type is generally divided into the coloratura, lyric, and dramatic contralto., Subject: maria malibran, Relation: movement, Options: (A) classical music (B) pop

A: classical music
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Q: Context: The Gulf of Mexico is an ocean basin largely surrounded by the North American continent. It is bounded on the northeast, north and northwest by the Gulf Coast of the United States, on the southwest and south by Mexico, and on the southeast by Cuba. The U.S. states of Alabama, Florida, Louisiana, Mississippi and Texas border the Gulf on the north, which are often referred to as the "Third Coast" in comparison with the U.S. Atlantic and Pacific coasts, or sometimes the "south coast", in juxtaposition to the Great Lakes region being the "north coast." One of the gulf's seven main areas is the Gulf of Mexico basin., Onykia is a genus of squids in the family Onychoteuthidae. Due to similarities between the genera, several recent authors consider the genus "Moroteuthis" a junior synonym of "Onykia". The type species is "Onykia carriboea", the tropical clubhook squid., Onykia carriboea, the tropical clubhook squid, is a squid in the family Onychoteuthidae, the type species of the genus "Onykia". It is known with certainty only from immature specimens. The type locality of "O. carriboea" is the Gulf of Mexico. "Onykia robsoni" has been suggested as a junior synonym, owing to similarities between the species., Onykia robsoni , the rugose hooked squid , is a species of squid in the family Onychoteuthidae . It occurs in the Antarctic Ocean , at an estimated depth of 250 -- 550 meters . The mantle of this species grows to a length of 75 cm. The species has been suggested as a junior synonym of Onykia carriboea , the tropical clubhook squid , due to similarities between the species ., Subject: onykia robsoni, Relation: parent_taxon, Options: (A) alabama (B) moroteuthis (C) onychoteuthidae (D) onykia

A: moroteuthis
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Q: Context: Infantry is the general branch of an army that engages in military combat on foot. As the troops who engage with the enemy in close-ranged combat, infantry units bear the largest brunt of warfare and typically suffer the greatest number of casualties during a military campaign. Historically, as the oldest branch of the combat arms, the infantry are the tip of the spear of a modern army, and continually undergo training that is typically more physically demanding and psychologically stressful than that of any other branch of the combat arms. Common representations of infantry fighting forces include the U.S. Army Infantry Branch, U.S. Marine Corps Infantry, Royal Canadian Infantry Corps, Infantry of the British Army, and the Royal Australian Corps of Infantry., Fortifications are military constructions or buildings designed for the defense of territories in warfare, and also used to solidify rule in a region during peace time. Humans have constructed defensive works for many thousands of years, in a variety of increasingly complex designs. The term is derived from the Latin "fortis" ("strong") and "facere" ("to make")., Self-propelled artillery (also called mobile artillery or locomotive artillery) is artillery equipped with its own propulsion system to move towards its target. Within the term are covered self-propelled guns (or howitzers) and rocket artillery. They are high mobility vehicles, usually based on continuous tracks carrying either a large howitzer, field gun, a mortar or some form of rocket or missile launcher. They are usually used for long-range indirect bombardment support on the battlefield., A siege is a military blockade of a city or fortress with the intent of conquering by attrition or assault. This derives from "sedere", Latin for "to sit". Siege warfare is a form of constant, low-intensity conflict characterized by one party holding a strong, static defensive position. Consequently, an opportunity for negotiation between combatants is not uncommon, as proximity and fluctuating advantage can encourage diplomacy., Artillery is a class of large military weapons built to fire munitions far beyond the range and power of infantry's small arms. Early artillery development focused on the ability to breach fortifications, and led to heavy, fairly immobile siege engines. As technology improved, lighter, more mobile field artillery developed for battlefield use. This development continues today; modern self-propelled artillery vehicles are highly mobile weapons of great versatility providing the largest share of an army's total firepower., A siege engine is a device that is designed to break or circumvent city walls and other fortifications in siege warfare. Some have been operated close to the fortifications, while others have been used to attack from a distance. From antiquity, siege engines were constructed largely of wood and tended to use mechanical advantage to fling stones and similar missiles. With the development of gunpowder and improved metallurgical techniques, siege engines became artillery. Collectively, siege engines or artillery together with the necessary troops and transport vehicles to conduct a siege are referred to as a siege-train., In international arms control, small arms include revolvers and pistols, rifles and carbines, assault rifles, submachine guns and light machine guns. Together with light weapons (heavy machine guns; hand-held grenade launchers; portable anti-aircraft and anti-tank guns; recoilless rifles; portable launchers of anti-aircraft and anti-tank missile systems; and mortars of calibres of less than 100mm), they comprise the Small Arms and Light Weapons (SALW) protocol., Field artillery is a category of mobile artillery used to support armies in the field . These weapons are specialized for mobility , tactical proficiency , long range , short range and extremely long range target engagement . Until the early 20th century , field artillery were also known as foot artillery , for while the guns were pulled by beasts of burden ( often horses ) , the gun crews would usually march on foot , thus providing fire support mainly to the infantry . This was in contrast to horse artillery , whose emphasis on speed while supporting cavalry units necessitated lighter guns and crews riding on horseback . Whereas horse artillery has been superseded by self - propelled artillery , field artillery has survived to this day both in name and mission , albeit with motor vehicles towing the guns , carrying the crews and transporting the ammunition . Modern artillery has also advanced to rapidly deployable wheeled and tracked vehicles and precision delivered munitions capable of striking targets at ranges between 15 and 300 kilometers ., Subject: field artillery, Relation: has_part, Options: (A) a (B) artillery (C) engine (D) field (E) field gun (F) infantry (G) infantry corps (H) light (I) one (J) system (K) technology (L) train

A:
field gun
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