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 : The 2013 Lake Grassmere earthquake was a magnitude 6.6 earthquake that occurred at 2:31:05 pm (NZST) on Friday 16 August 2013. 
Question : On what date did 2013 Lake Grassmere earthquake take place?
point in time

Context : Q150 was the sequicentenary (150th anniversary) of the Separation of Queensland from New South Wales in 1859. 
Question : What was the date of Q150?
point in time

Context : Elizabeth Jeffries (1727, Bridgnorth, Shropshire -- March 28, 1752 in Leytonstone, England) was an English woman executed for murder. 
Question : For what crime was Elizabeth Jeffries prosecuted?

convicted of

