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 : Sonia Gil (born 24 September 1981) is an entrepreneur and travel vlogger. 
Question : What is the university where Sonia Gil went?
Example Output: educated at

Example Input: Context : The GER Class G69 was a class of twenty 2-4-2T steam locomotives built by for the Great Eastern Railway by S. D. Holden in 1911--12 following the design of two rebuilt examples of the GER Class M15 designed by James Holden, his father in 1904. 
Question : What was the year GER Class G69 entered service?
Example Output: service entry

Example Input: Context : The Ak 5 or Automatkarbin 5 (``automatic carbine 5'', ``automatic carbine'' being the Swedish term for assault rifle) is the Swedish version of the FN FNC assault rifle with certain modifications, mostly to adapt the weapon to the Swedish climate. 
Question : Which is the basis of Ak 5?
Example Output:
based on