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.

Context : Leon de Winter was born on 24 February 1954 in Den Bosch, in the southern Netherlands. 
Question : What was Leon de Winter's occupation?
occupation

Context : NGC 185 was discovered by William Herschel on November 30, 1787, and he cataloged it ``H II.707''. 
Question : What constellation does NGC 185 belong to?
constellation

Context : Sergey Ryazansky was launched to the International Space Station on board the Soyuz TMA-10M spacecraft on September 25, 2013 alongside Russian cosmonaut, Oleg Kotov and American astronaut Michael S. Hopkins. 
Question : What was Sergey Ryazansky's career?

occupation