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 : One night, however, Laius was drunk and fathered Oedipus with her. 
Question : What is Laius's spouse's name?

Answer: spouse


Question: Context : Caleb Powers (February 1, 1869 -- July 25, 1932) was a United States Representative from Kentucky and the first Secretary of State of Kentucky convicted as an accessory to murder. 
Question : For what crime was Caleb Powers prosecuted?

Answer: convicted of


Question: Context : The JS 7.62mm Sniper Rifle uses the Russian 7.62×54mmR round, which is also used in the People's Liberation Army designated marksmen rifles Type 79 and Type 85. 
Question : What year was the service entry date for JS 7.62?

Answer:
service entry