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 : John David Duty (April 25, 1952 -- December 16, 2010) was an American who was executed in Oklahoma for first-degree murder. 
Question : For what crime was John David Duty prosecuted?

Answer: convicted of


Question: Context : LOT Charters launched flight operations on 1 June 2009. 
Question : What is LOT Charters's parent company?

Answer: parent company


Question: Context : Charles Boarman was born in Bryantown, Maryland on December 24, 1795. 
Question : What military branch was Charles Boarman in?

Answer:
military branch