Teacher: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).
Teacher: Now, understand the problem? Solve this instance: Context: The subfamily Catantopinae is a group of insects classified under family Acrididae. Commonly called spur-throated grasshoppers, that name is also used for some grasshoppers from related subfamilies, namely the genus "Melanoplus" from the Melanoplinae. Indeed, the delimitation of these two subfamilies needs restudy: the Podismini for example are sometimes placed here, sometimes in the Melanoplinae., A continent is one of several very large landmasses on Earth. Generally identified by convention rather than any strict criteria, up to seven regions are commonly regarded as continents. Ordered from largest in size to smallest, they are: Asia, Africa, North America, South America, Antarctica, Europe, and Australia. In geology, areas of continental crust include regions covered with water., Melanoplus is a large genus of grasshoppers . They are the typical large grasshoppers ( and in some cases migratory `` locusts '' ) in North America . A common name is spur - throat grasshoppers ( also `` spurthroat '' or `` spur - throated grasshoppers '' ) , but this more typically refers to members of the related subfamily Catantopinae . The largest grasshoppers of this genus can reach nearly 5 cm ( 2.0 in ) in length , but most are smaller . Some are intricately patterned and colorful , others are drab . Melanoplus eat grasses of all kinds , as well as leafy and grassy agricultural crops and garden plants . They feed on the leaves , and sometimes fruit , flowers , and buds , as well as tree bark . Many of the more notable agricultural pest grasshoppers belong here , including the Rocky Mountain locust , the most significant insect pest of the 19th century Great Plains , but now extinct ., The Acrididae are the predominant family of grasshoppers, comprising some 10,000 of the 11,000 species of the entire suborder Caelifera. The Acrididae are best known because all locusts (swarming grasshoppers) are of the Acrididae. The subfamily Oedipodinae is sometimes classified as a distinct family Oedipodidae in the superfamily Acridoidea. Acrididae grasshoppers are characterized by relatively short and stout antennae, and tympana on the side of the first abdominal segment., North America is a continent entirely within the Northern Hemisphere and almost all within the Western Hemisphere. It can also be considered a northern subcontinent of the Americas. It is bordered to the north by the Arctic Ocean, to the east by the Atlantic Ocean, to the west and south by the Pacific Ocean, and to the southeast by South America and the Caribbean Sea., Insects (from Latin ', a calque of Greek ['], "cut into sections") are a class of invertebrates within the arthropod phylum that have a chitinous exoskeleton, a three-part body (head, thorax and abdomen), three pairs of jointed legs, compound eyes and one pair of antennae. They are the most diverse group of animals on the planet, including more than a million described species and representing more than half of all known living organisms. The number of extant species is estimated at between six and ten million, and potentially represent over 90% of the differing animal life forms on Earth. Insects may be found in nearly all environments, although only a small number of species reside in the oceans, a habitat dominated by another arthropod group, crustaceans., Grasshoppers are insects of the suborder Caelifera within the order Orthoptera, which includes crickets and katydids (bush crickets). They are sometimes referred to as short-horned grasshoppers to distinguish them from the katydids, which have much longer antennae. They are probably the oldest living group of chewing herbivorous insects, dating back to the early Triassic around 250 million years ago. Grasshoppers are typically ground-dwelling insects with powerful hind legs which enable them to escape from threats by leaping vigorously. They are hemimetabolous insects (they do not undergo complete metamorphosis) which hatch from an egg into a nymph or "hopper" which undergoes five moults, becoming more similar to the adult insect at each developmental stage. At high population densities and under certain environmental conditions, some grasshopper species can change colour and behaviour and form swarms. Under these circumstances they are known as locusts., Locusts are certain species of short-horned grasshoppers in the family Acrididae that have a swarming phase. These insects are usually solitary, but under certain circumstances become more abundant and change their behaviour and habits, becoming gregarious. There is no taxonomic distinction between locust and grasshopper species; the basis for the definition is whether a species forms swarms under intermittently suitable conditions., In the context of human society, a family (from ) is a group of people affiliated either by consanguinity (by recognized birth), affinity (by marriage or any other relationship like siblings families etc..), or co-residence (as implied by the etymology of the English word "family") 
or some combination of these. Members of the immediate family include spouses, parents, brothers, sisters, sons, and/or daughters. Members of the extended family may include grandparents, aunts, uncles, cousins, nephews, nieces, and/or siblings-in-law. Sometimes these are also considered members of the immediate family, depending on an individual's specific relationship with them., A genus ( genera) is a taxonomic rank used in the biological classification of living and fossil organisms in biology. In the hierarchy of biological classification, genus comes above species and below family. In binomial nomenclature, the genus name forms the first part of the binomial species name for each species within the genus., In biology, an organism is any contiguous living system, such as an animal, plant, fungus, archaeon, or bacterium. All known types of organisms are capable of some degree of response to stimuli, reproduction, growth and development and homeostasis. An organism consists of one or more cells; when it has one cell it is known as a unicellular organism; and when it has more than one it is known as a multicellular organism. Most unicellular organisms are of microscopic scale and are thus loosely described as microorganisms. Humans are multicellular organisms composed of many trillions of cells grouped into specialized tissues and organs., The Melanoplinae are a subfamily of grasshoppers in the family Acrididae. They are distributed across the Holarctic and Neotropic ecozones., Binomial nomenclature (also called binominal nomenclature or binary nomenclature) is a formal system of naming species of living things by giving each a name composed of two parts, both of which use Latin grammatical forms, although they can be based on words from other languages. Such a name is called a binomial name (which may be shortened to just "binomial"), a binomen or a scientific name; more informally it is also called a Latin name. The first part of the name identifies the genus to which the species belongs; the second part identifies the species within the genus. For example, humans belong to the genus "Homo" and within this genus to the species "Homo sapiens". The "formal" introduction of this system of naming species is credited to Carl Linnaeus, effectively beginning with his work "Species Plantarum" in 1753. But Gaspard Bauhin, in as early as 1623, had introduced in his book "Pinax theatri botanici" (English, "Illustrated exposition of plants") many names of genera that were later adopted by Linnaeus., The Atlantic Ocean is the second largest of the world's oceans with a total area of about . It covers approximately 20 percent of the Earth's surface and about 29 percent of its water surface area. It separates the "Old World" from the "New World"., Subject: melanoplus, Relation: parent_taxon, Options: (A) acrididae (B) animal (C) area (D) areas (E) grasshopper (F) homo (G) human (H) insects (I) melanoplinae (J) melanoplus (K) plant
Student:
melanoplinae