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).

Example Input: Context: A stepper is a device used in the manufacture of integrated circuits (ICs) that is similar in operation to a slide projector or a photographic enlarger. Steppers are an essential part of the complex process, called photolithography, that creates millions of microscopic circuit elements on the surface of tiny chips of silicon. These chips form the heart of ICs such as computer processors, memory chips, and many other devices., Pentax () is a brand name used primarily by Ricoh Imaging Company for cameras, sport optics (including binoculars and rifle scopes), and CCTV optics. The brand is also used by Hoya Corporation for medical products & services, TI Asahi for surveying instruments, and Seiko Optical Products for certain optical lenses., A camera lens (also known as photographic lens or photographic objective) is an optical lens or assembly of lenses used in conjunction with a camera body and mechanism to make images of objects either on photographic film or on other media capable of storing an image chemically or electronically., The Nikon F camera, introduced in April 1959, was Nikon's first SLR camera. It was one of the most advanced cameras of its day. Although many of the concepts had already been introduced elsewhere, it was revolutionary in that it was the first to combine them all in one camera. It was produced until October 1973 and was replaced by the quite similar Nikon F2. Aspects of its design remain in all of Nikon's subsequent SLR cameras, through the current Nikon F6 film and Nikon D5 digital models (which still share its Nikon F-mount for lenses). The "F" in Nikon F was selected by Nippon Kogaku from the letter F of the name of the designer of the bayonet mount, Mr. Fuketa. That tradition was carried all the way through their top line of Nikon cameras until the introduction of the Nikon D1 (digital) cameras decades later., Large format refers to any imaging format of 4×5 inches (102×127 mm) or larger. Large format is larger than "medium format", the 6×6 cm (2×2 inch) or 6×9 cm (2×3 inch) size of Hasselblad, Rollei, Kowa, and Pentax cameras (using 120- and 220-roll film), and much larger than the 24×36 mm (~ 1.0x1.5 inch) frame of 35 mm format.
The main advantage of large format, film or digital, is higher resolution at the same pixel pitch, or same resolution with more larger pixels or grain. A 4×5 inch image has about 16 times the area, and thus 16× the total resolution, of a 35 mm frame., 35 mm film (millimeter) is the film gauge most commonly used for motion pictures and chemical still photography (see 135 film). The name of the gauge refers to the width of the photographic film, which consists of strips 34.98 ±0.03 mm (1.377 ±0.001 inches) wide. The standard negative pulldown for movies ("single-frame" format) is four perforations per frame along both edges, which results in 16 frames per foot of film. For still photography, the standard frame has eight perforations on each side., A microscope (from the , "mikrós", "small" and , "skopeîn", "to look" or "see") is an instrument used to see objects that are too small for the naked eye. The science of investigating small objects using such an instrument is called microscopy. Microscopic means invisible to the eye unless aided by a microscope., , formerly known as , is a Japanese multinational electronics corporation headquartered in Kadoma, Osaka, Japan., Nikonos Calypso is the name of a series of 35mm format cameras specifically designed for underwater photography launched by Nikon in 1963. The early Nikonos cameras were improvements of the Calypso camera, which was an original design by Jacques-Yves Cousteau and Belgian engineer Jean de Wouters, Binoculars or field glasses are binocular telescopes mounted side-by-side and aligned to point in the same direction, allowing the viewer to use both eyes (binocular vision) when viewing distant objects. Most are sized to be held using both hands, although sizes vary widely from opera glasses to large pedestal mounted military models., Sony Corporation is the electronics business unit and the parent company of the Sony Group, which is engaged in business through its four operating components  electronics (video games, network services and medical business), motion pictures, music and financial services. These make Sony one of the most comprehensive entertainment companies in the world. Sony's principal business operations include Sony Corporation, Sony Pictures Entertainment, Sony Interactive Entertainment, Sony Music Entertainment, Sony Mobile (formerly Sony Ericsson) and Sony Financial. Sony is among the Semiconductor sales leaders by year and as of 2013, the fourth-largest television manufacturer in the world, after Samsung Electronics, LG Electronics and TCL., Its products include cameras, camera lenses, binoculars, microscopes, ophthalmic lenses, measurement instruments, rifle scopes, spotting scopes, and the steppers used in the photolithography steps of semiconductor fabrication, of which it is the world's second largest manufacturer. The companies held by Nikon form the Nikon Group. Among its products are Nikkor imaging lenses (for F-mount cameras, large format photography, photographic enlargers, and other applications), the Nikon F-series of 35 mm film SLR cameras, the Nikon D-series of digital SLR cameras, the Coolpix series of compact digital cameras, and the Nikonos series of underwater film cameras. Nikon's main competitors in camera and lens manufacturing include Canon, Sony, Fujifilm, Panasonic, Pentax, and Olympus., , better known as Fujifilm or simply Fuji, stylized as FUJiFILM, is a Japanese multinational photography and imaging company headquartered in Tokyo., Photolithography, also termed optical lithography or UV lithography, is a process used in microfabrication to pattern parts of a thin film or the bulk of a substrate. It uses light to transfer a geometric pattern from a photomask to a light-sensitive chemical "photoresist", or simply "resist," on the substrate. A series of chemical treatments then either engraves the exposure pattern into, or enables deposition of a new material in the desired pattern upon, the material underneath the photo resist. For example, in complex integrated circuits, a modern CMOS wafer will go through the photolithographic cycle up to 50 times., Nikkor is the brand of lenses produced by Nikon Corporation, including camera lenses for the Nikon F-mount., The 70 - 300mm lens is a telephoto zoom lens made by Nikon . The lens has an F - mount to work with all the SLRs line of cameras ( except the early 70 - 300G with the D40 ) . The lens comes in four different versions : AF f / 4 - 5.6G AF f / 4 - 5.6D AF f / 4 - 5.6D ED AF - S f / 4.5 - 5.6G IF - ED It is the successor of the 70 - 210 lens , which targets the prosumer market , one grade lower than 80 - 200mm with large aperture . Introduced in August 2006 , the current incarnation of the lens ( AF - S VR f / 4.5 - 5.6G IF - ED ) improves on the original with VR stabilization technology as well as with internally focusing components ( IF ) . More expensive than its partner 55 - 200mm lens , its construction is similar , with the exterior shell being fabricated from plastic components . It also shares a similarly stiff zoom ring with the 55 - 200mm , although a side benefit of this is that zoom creep is eliminated . Unlike the 55 - 200 , the 70 - 300mm lens is full - frame . Also , the longer barrel length allowed the focus ring to be relocated in front of the zoom ring , making manual focus operations simpler ., Measurement is the assignment of a number to a characteristic of an object or event, which can be compared with other objects or events. The scope and application of a measurement is dependent on the context and discipline. In the natural sciences and engineering, measurements do not apply to nominal properties of objects or events, which is consistent with the guidelines of the "International vocabulary of metrology" published by the International Bureau of Weights and Measures. However, in other fields such as statistics as well as the social and behavioral sciences, measurements can have multiple levels, which would include nominal, ordinal, interval, and ratio scales., Subject: nikon f 70-300mm lens, Relation: instance_of, Options: (A) application (B) april (C) area (D) brand (E) camera (F) camera lens (G) canon (H) chemical (I) company (J) complex (K) computer (L) corporation (M) day (N) device (O) eight (P) electronics (Q) event (R) field (S) film (T) format (U) four (V) instrument (W) letter (X) line (Y) lithography (Z) manufacturer ([) manufacturing (\) material (]) measurement (^) microscope (_) motion (`) name (a) negative (b) network (c) object (d) october (e) operation (f) parent company (g) part (h) pattern (i) photography (j) point (k) process (l) revolutionary (m) rifle (n) series (o) side (p) single (q) size (r) statistics
Example Output: camera lens

Example Input: Context: The incumbent is the current holder of a political office. This term is usually used in reference to elections, in which races can often be defined as being between an incumbent and non-incumbent(s). For example, in the 2012 United States presidential election, Barack Obama was the incumbent, because he had been the president in the previous term while the election sought to determine the president for the current term. A race without an incumbent is referred to as an open seat., The President of the United States (POTUS) is the elected head of state and head of government of the United States. The president directs the executive branch of the federal government and is the commander-in-chief of the United States Armed Forces., The Governor of California is the chief executive of the California state government, commander-in-chief of the California National Guard and the California State Military Reserve, whose responsibilities also include making annual State of the State addresses to the California State Legislature, submitting the budget, and ensuring that state laws are enforced. The position was created in 1849, the year before California became a state.
The current governor is Jerry Brown, a Democrat who was inaugurated January 3, 2011, and who had previously served as governor from 1975 to 1983. In October 2013, Jerry Brown surpassed Earl Warren for the longest cumulative period of time served as governor., The California gubernatorial election , 1970 was held on November 3 , 1970 . The incumbent , Republican Ronald Reagan , won re-election over Democrat and Speaker of the Assembly Jesse `` Big Daddy '' Unruh . After leaving office in 1975 , Reagan joined presidential primaries in 1976 but narrowly lost to President Ford . He was elected the President of the United States in 1980 ., Ronald Wilson Reagan (February 6, 1911  June 5, 2004) was an American politician and actor who was the 40th President of the United States, from 1981 to 1989. Before his presidency, he was the 33rd Governor of California, from 1967 to 1975, after a career as a Hollywood actor and union leader., Barack Hussein Obama II (; born August 4, 1961) is an American politician who served as the 44th President of the United States from 2009 to 2017. He was the first African American to serve as president, as well as the first born outside the contiguous United States. He previously served in the U.S. Senate representing Illinois from 2005 to 2008, and in the Illinois State Senate from 1997 to 2004., Subject: california gubernatorial election, Relation: office_contested, Options: (A) governor (B) head of state (C) president
Example Output: governor

Example Input: Context: Giessen, spelled Gießen in German, is a town in the German federal state ("Bundesland") of Hesse, capital of both the district of Giessen and the administrative region of Giessen. The population is approximately 78,000, with roughly 24,000 university students., Hesse or Hessia (, Hessian dialect: "Hesse" ) is a federal state ("Land") of the Federal Republic of Germany, with just over six million inhabitants. The state capital is Wiesbaden; the largest city is Frankfurt am Main. Until the formation of the German Reich in 1871, Hesse was an independent country ruled by a Grand Duke (Grand Duchy of Hesse). Due to divisions after World War II, the modern federal state does not cover the entire cultural region of Hesse which includes both the State of Hesse and the area known as Rhenish Hesse (Rheinhessen) in the neighbouring state of Rhineland-Palatinate., Ernst Friedberger ( May 17 , 1875 - January 25 , 1932 ) was a German immunologist and hygienist born in Giessen . In 1899 he received his medical doctorate at the University of Giessen , and in 1901 became an assistant at the University of Königsberg , where in 1903 he was habilitated as a lecturer in hygiene . In 1908 he attained the directorship of experimental therapy at the Institute of Pharmacology at the University of Berlin . From 1915 to 1926 he was professor of hygiene at the University of Greifswald , and afterwards director of the Preußischen Forschungsinstituts für Hygiene und Immunitätslehre ( Research Institute of Hygiene and Immunology ) in Berlin - Dahlem . Friedberger is remembered for his investigations of anaphylaxis . He demonstrated that the specific arrangement between antigen , antibody , and complement is accompanied by the manufacture of anaphylatoxin , a word he used for the poison that was supposed to be the same with the one produced in vivo during anaphylactic shock . Later in his career , he dealt with various aspects of the immune system involving bacterial pathogens , with epidemiological research , and with hygiene issues concerning clothing , living quarters , etc., Subject: ernst friedberger, Relation: place_of_birth, Options: (A) frankfurt (B) frankfurt am main (C) german (D) germany (E) gießen (F) hesse (G) of (H) palatinate (I) wiesbaden
Example Output:
gießen