Information: - In chemistry, a soap is a salt of a fatty acid. Household uses for soaps include washing, bathing, and other types of housekeeping, where soaps act as surfactants, emulsifying oils to enable them to be carried away by water. In industry they are also used in textile spinning and are important components of some lubricants. - A sulfonate is a salt or ester of a sulfonic acid. It contains the functional group R-SO. - A carboxylate is a salt or ester of a carboxylic acid. "Carboxylate salts" have the general formula M(RCOO), where M is a metal and "n" is 1,2...; "carboxylate esters" have the general formula RCOOR. R and R are organic groups; RH. - Surfactants are compounds that lower the surface tension (or interfacial tension) between two liquids or between a liquid and a solid. Surfactants may act as detergents, wetting agents, emulsifiers, foaming agents, and dispersants. - Wetting is the ability of a liquid to maintain contact with a solid surface, resulting from intermolecular interactions when the two are brought together. The degree of wetting (wettability) is determined by a force balance between adhesive and cohesive forces. Wetting deals with the three phases of materials: gas, liquid, and solid. It is now a center of attention in nanotechnology and nanoscience studies due to the advent of many nanomaterials in the past two decades (e.g. graphene, carbon nanotube). - Hard water is water that has high mineral content (in contrast with "soft water"). Hard water is formed when water percolates through deposits of limestone and chalk which are largely made up of calcium and magnesium carbonates. - A detergent is a surfactant or a mixture of surfactants with "cleaning properties in dilute solutions." These substances are usually alkylbenzenesulfonates, a family of compounds that are similar to soap but are more soluble in hard water, because the polar sulfonate (of detergents) is less likely than the polar carboxylate (of soap) to bind to calcium and other ions found in hard water. - Linear alkylbenzene is a family of organic compounds with the formula C6H5CnH2n +1 . Typically , n lies between 10 and 16 , although generally supplied as a tighter cut , such as C12 - C15 , C12 - C13 and C10 - C13 , for detergent use . The CnH2n +1 chain is unbranched . They are sometimes called LABs . They are mainly produced as intermediate in the production of surfactants , for use in detergent . Since the 1960s , LABs have emerged as the dominant precursor of biodegradable detergents . Given the information, choose the subject and object entities that have the relation of 'has part'.
Ans: linear alkylbenzene , carbon

Information: - Boyz II Men is an American R&B vocal group, best known for emotional ballads and "a cappella" harmonies. Formerly a quartet including bass Michael McCary, they are currently a trio composed of baritone Nathan Morris alongside tenors Wanya Morris and Shawn Stockman. During the 1990s, Boyz II Men found fame on Motown Records as a quartet. McCary left the group in 2003 due to health issues and contractual agreements. - Nathan Morris ( born June 18 , 1971 ) is an American singer , businessman , and a founding member of Boyz II Men . - Shawn Patrick Stockman (born September 26, 1972) is an American R&B singer, best known as a member of the vocal group Boyz II Men. He is currently a judge on the television show "The Sing-Off", alongside Jewel Kilcher, Ben Folds, and host Nick Lachey. - Wanya Jermaine Morris (born July 29, 1973) is an American R&B singer, best known as a member of the R&B group Boyz II Men. He grew up in the Richard Allen neighborhood of Philadelphia. - In music, a quartet or quartette (, , ) is an ensemble of four singers or instrumental performers; or a musical composition for four voices or instruments. - Michael "Mike" Sean McCary (born December 16, 1971) is an American R&B singer, best known as the former bass singer of the R&B group, Boyz II Men. Given the information, choose the subject and object entities that have the relation of 'place of birth'.
Ans: nathan morris , philadelphia

Information: - Consumer electronics or home electronics are electronic or digital equipment intended for everyday use, typically in private homes. Consumer electronics include devices used for entertainment (flatscreen TVs, DVD players, DVD movies, iPods, video games, remote control cars, etc.), communications (telephones, cell phones, e-mail-capable laptops, etc.), and home-office activities (e.g., desktop computers, printers, paper shredders, etc.). In British English, they are often called brown goods by producers and sellers, to distinguish them from "white goods" such as washing machines and refrigerators. In the 2010s, this distinction is not always present in large big box consumer electronics stores, such as Best Buy, which sell both entertainment, communications, and home office devices and kitchen appliances such as refrigerators. Consumer electronics stores differ from professional audio stores in that the former sells consumer-grade electronics for private use, whereas the latter sells professional-grade electronics designed for use by audio engineers and audio technicians. - The SX - 70 is a folding single lens reflex Land camera which was produced by the Polaroid Corporation from 1972 to 1981 . - Eyewear consists of items and accessories worn on or over the eyes, for fashion or adornment, protection against the environment, and to improve or enhance visual acuity. - Polaroid is an American company that is a brand licensor and marketer of its portfolio of consumer electronics to companies that distribute consumer electronics and eyewear. It is best known for its Polaroid instant film and cameras. - Land Cameras are instant cameras with self-developing film named after their inventor, Edwin Land, while working for Research Row in Boston, Massachusetts and manufactured by Polaroid between the years of 1947 and 1983. Though Polaroid continued producing instant cameras after 1983, the name 'Land' was dropped from the camera name since Edwin Land retired in 1982. The first commercially available model was the "Polaroid Land Camera Model 95", which produced prints in about 1 minute,and was first sold to the public in November, 1948. - Red is the color at the longer-wavelengths end of the spectrum of visible light next to orange, at the opposite end from violet. Red color has a predominant light wavelength of roughly 620740 nanometers. Light with a longer wavelength than red but shorter than terahertz radiation and microwave is called infrared. - The instant camera is a type of camera which uses self-developing film to create a chemically developed print shortly after taking the picture. Polaroid Corporation pioneered (and patented) consumer friendly instant cameras and film, and were followed by various other manufacturers. Given the information, choose the subject and object entities that have the relation of 'instance of'.
Ans: polaroid sx-70 , camera model