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.

Example Input: Context : While Robin searches for her 'Something Old', Lily and Marshall prepare for their 'Something New' by packing up for their move to Italy. 
Question : What is the series that Something Old is a part of?
Example Output: series

Example Input: Context : State testing began on 24 November 1974, and the Kh-25 entered production in 1975. 
Question : What year was the service entry date for Kh-25?
Example Output: service entry

Example Input: Context : In September 2010, it was announced that Transavia Denmark will cease operations on 23 April 2011. 
Question : What company is Transavia Denmark part of?
Example Output:
parent company