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.

[EX Q]: Context : Re-Animator is a 1985 American science fiction horror comedy film loosely based on the H. P. Lovecraft episodic novella ``Herbert West-- 
Question : Which is the basis of Re-Animator?
[EX A]: based on

[EX Q]: Context : Cadbury is headquartered in Uxbridge, Greater London and operates in more than fifty countries worldwide. 
Question : Which company is the parent company of Cadbury?
[EX A]: parent company

[EX Q]: Context : Menachem Mendel Schneerson was born on Friday, April 5, 1902 (OS) (11 Nissan, 5662) in the Black Sea port of Nikolaev in the Russian Empire (now Mykolaiv in Ukraine). 
Question : What city is Menachem Mendel Schneerson associated with?
[EX A]:
residence