[Q]: Information: - A monoplane is a fixed-wing aircraft with a single main wing plane, in contrast to a biplane or other multiplane, each of which has multiple planes. - A biplane is a fixed-wing aircraft with two main wings stacked one above the other. The first powered, controlled aeroplane to fly, the Wright Flyer, used a biplane wing arrangement, as did many aircraft in the early years of aviation. While a biplane wing structure has a structural advantage over a monoplane, it produces more drag than a similar unbraced or cantilever monoplane wing. Improved structural techniques, better materials and the quest for greater speed made the biplane configuration obsolete for most purposes by the late 1930s. - The British Hawker Hind was a Royal Air Force light bomber of the inter-war years produced by Hawker Aircraft . It was developed from the Hawker Hart day - bomber introduced in 1931 . - The Hawker Hart was a British two-seater biplane light bomber aircraft of the Royal Air Force (RAF). It was designed during the 1920s by Sydney Camm and manufactured by Hawker Aircraft. The Hart was a prominent British aircraft in the inter-war period, but was obsolete and already side-lined for newer monoplane aircraft designs by the start of the Second World War, playing only minor roles in the conflict before being retired. What is the relationship between 'hawker hind' and 'biplane'?
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[A]: wing configuration
Problem: Information: - Light rail, light rail transit (LRT) or fast tram is urban public transport using rolling stock similar to a tramway, but operating at a higher capacity, and often on an exclusive right-of-way. - Boylston Street is the name of a major east-west thoroughfare in the city of Boston, Massachusetts. The Boston street was known as Frog Lane in the early 18th century and was later known as Common Street. It was later again renamed for Ward Nicholas Boylston (17471828), a man of wealth and refinement, an officer of the Crown, and philanthropist. Boylston, who was a descendent of Zabdiel Boylston, was born in Boston and spent much of his life in it. The Boylston Market was named after him as was the town of Boylston, Massachusetts. - Arlington is a station on the Green Line light rail service of the MBTA transit system . The station is located at the southwest corner of the Boston Public Garden , at the corner of Arlington and Boylston Streets . It is therefore popular for reaching the Public Garden , particularly its famous swan boats . - A tram (also known as tramcar; and in North America known as streetcar, trolley or trolley car) is a rail vehicle which runs on tracks along public urban streets, and also sometimes on a segregated right of way. The lines or networks operated by tramcars are called tramways. Tramways powered by electricity, the most common type historically, were once called electric street railways (mainly in the USA). However, trams were widely used in urban areas before the universal adoption of electrification; other methods of powering trams are listed below under "History". What is the relationship between 'arlington ' and 'massachusetts'?

A:
located in the administrative territorial entity