In this task, you are given a question and a context passage. You have to answer the question based on the given passage.

Q: what machine is mentioned first?, Context: Eventually, when it was more common for electric recordings to be played back electrically in the 1930s and 1940s, the overall tone was much like listening to a radio of the era. Magnetic pickups became more common and were better designed as time went on, making it possible to improve the damping of spurious resonances. Crystal pickups were also introduced as lower cost alternatives. The dynamic or moving coil microphone was introduced around 1930 and the velocity or ribbon microphone in 1932. Both of these high quality microphones became widespread in motion picture, radio, recording, and public address applications.

A: radio
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Q: What has to be done with lights in order for them to work?, Context: Entry lights can be used outside to illuminate and signal the entrance to a property. These lights are installed for safety, security, and for decoration.

A: installed
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Q: What type of match is the one between the top players of the Japanese league?, Context: In the UK and Ireland, "exhibition match" and "friendly match" refer to two different types of matches. The types described above as friendlies are not termed exhibition matches, while annual all-star matches such as those held in the US Major League Soccer or Japan's Japanese League are called exhibition matches rather than friendly matches. A one-off match for charitable fundraising, usually involving one or two all-star teams, or a match held in honor of a player for contribution to his/her club, may also be described as exhibition matches but they are normally referred to as charity matches and testimonial matches respectively.

A:
exhibition matches
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