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 : Born at Lisbon, Andreas de Escobar joined the Dominicans and then the Augustinians before becoming a Benedictine monk. 
Question : On what date did Andreas de Escobar die?

Answer: date of death


Question: Context : The Tiuna was created to compete with the American-made Humvee, which was first shown to the public on July 20, 2004. 
Question : What year did Tiuna come into use?

Answer: service entry


Question: Context : Continental Airlines Flight 1713 crashed while taking off in a snowstorm from Stapleton International Airport in Denver, Colorado on 15 November 1987. 
Question : What is the full date that Continental Airlines Flight 1713 crashed on?

Answer:
point in time