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.

Input: Consider Input: Context : Columbus Nova is an investment company founded in 2000 and centered in New York City. 
Question : Which company is the parent company of Columbus Nova?

Output: parent company


Input: Consider Input: Context : Jane Stafford (1899--1991) was an American medical writer and chemist. 
Question : What is the date of Jane Stafford's death?

Output: date of death


Input: Consider Input: Context : The Battle of Farrukhabad (14 November 1804) was an engagement during the Second Anglo-Maratha War between forces of the British East India Company and those of Maharaja Yashwantrao Holkar of the Maratha Empire. 
Question : What was the date of Battle of Farrukhabad?


Output: point in time