Classify the relation of question with context to one of these categories: 1) award received, 2) based on, collection, 3) conflict, 4) constellation, 5) convicted of, 6) date of death, 7) director, 8) drafted by, 9) educated at, 10) medical condition, 11) military branch, 12) narrative location, 13) occupation, 14) original network, 15) parent company, 16) point in time, 17) production company, 18) residence, 19) series, 20) service entry, 21) sex or gender, 22) spouse, 23) standards body question.
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Question: Context : The BMP-3 is designed and produced by the Kurganmashzavod (``Kurgan Machine Building Plant'') some variants however are built by the Rubtsovsk Machine Building Plant (RMZ), for example the BRM-3K. 
Question : What year was BMP-3 introduced?

Answer: service entry


Question: Context : WDR Computerclub was the first television broadcast in West Germany of the Westdeutscher Rundfunk Köln (WDR, West German Broadcasting Cologne) that dealt solely with the issues of computer and technology. 
Question : What network aired WDR Computerclub?

Answer: original network


Question: Context : John William ``Johnny'' Carson (October 23, 1925 -- January 23, 2005) was an American television host, comedian, writer, producer, actor, and musician, best known for his thirty years as host of The Tonight Show Starring Johnny Carson (1962--1992). 
Question : Which award did Johnny Carson get?

Answer:
award received