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.
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Question: Context : The Proclamation of Indonesian Independence (Indonesian: Proklamasi Kemerdekaan Indonesia, or simply Proklamasi) was read at 10.00 a.m. on Friday, 17 August 1945. 
Question : The point in time of Proclamation of Indonesian Independence was what?

Answer: point in time


Question: Context : Ana Lovrin (Croatian pronunciation: (âna lǒːʋrin) or (ǎːna-); born 2 December 1953), is a Croatian politician. 
Question : What kind of  occupation does Ana Lovrin have?

Answer: occupation


Question: Context : The BMD-1 is a Soviet airborne amphibious tracked infantry fighting vehicle, which was introduced in 1969 and first seen by the West in 1970. 
Question : What year was BMD-1 introduced?

Answer:
service entry