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 : Narcissus in Chains is the tenth book in the Anita Blake: 
Question : What is the series that Narcissus in Chains is a part of?

Answer: series


Question: Context : At FCM Jammy and Savatier finished the Char 2C prototype, the other nine tanks being built almost simultaneously; all ten were delivered in 1921 and modified by the factory until 1923. 
Question : In which year was the service entry date for Char 2C?

Answer: service entry


Question: Context : Archibald was born in Glenfield House in Abbey, near Paisley, the third son of Archibald Barr, a yarn merchant, and Jeanie Stirrat, Barr was educated at Paisley Grammar School and apprenticed as an engineer to A F Craig & Co in Paisley before attending University of Glasgow to study engineering. 
Question : What is the name of university that educated Archibald Barr?

Answer:
educated at