instruction:
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.
question:
Context : Dušan Majdán (born 8 September 1987) is a male Slovakian racewalker. 
Question : Is Dušan Majdán a male or female?
answer:
sex or gender


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 : On July 29, 2008, XM and former competitor Sirius Satellite Radio formally completed their merger, following U.S. Federal Communications Commission (FCC) approval, forming Sirius XM Radio, Inc. with XM Satellite Radio, Inc. as its subsidiary. 
Question : What is XM Satellite Radio's parent company?
answer:

parent company