In this task you will be given an answer to a question. You need to generate a question. The answer given should be a correct answer for the generated question.

[EX Q]: The Korean Demilitarized Zone (DMZ; Hangul: 한반도 비무장 지대; Hanja: 韓 半島 非 武裝 地帶), informally known as the 38th Parallel, is a strip of land running across the Korean Peninsula. It is established by the provisions of the Korean Armistice Agreement to serve as a buffer zone between the Democratic People's Republic of Korea (North Korea) and the Republic of Korea (South Korea). The Demilitarized zone (DMZ) is a border barrier that divides the Korean Peninsula roughly in half. It was created by agreement between North Korea, China and the United Nations in 1953. The DMZ is 250 kilometres (160 miles) long, and about 4 kilometres (2.5 miles) wide.
[EX A]: where do north korea and south korea meet

[EX Q]: The XOR gate (sometimes EOR, or EXOR and pronounced as Exclusive OR) is a digital logic gate that gives a true (1 or HIGH) output when the number of true inputs is odd. An XOR gate implements an exclusive or; that is, a true output results if one, and only one, of the inputs to the gate is true. If both inputs are false (0 / LOW) or both are true, a false output results. XOR represents the inequality function, i.e., the output is true if the inputs are not alike otherwise the output is false. A way to remember XOR is 'one or the other but not both'.
[EX A]: why xnor and xor are called exclusive gates

[EX Q]: Back to the Future: Music from the Motion Picture Soundtrack is the soundtrack album to the film of the same name. It was released on July 8, 1985 by MCA Records. The album included two tracks culled from Alan Silvestri's compositions for the film, two tracks from Huey Lewis and the News, two songs played by the fictional band Marvin Berry and The Starlighters, one played by Marty McFly and The Starlighters, and two pop songs that are only very briefly heard in the background of the film.
[EX A]:
who did the music for back to the future