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 : Domitia Longina (c. AD 53-55--c. AD 126-130) was an Empress of Rome and wife to the Roman Emperor Domitian. 
Question : What is Domitia Longina's spouse's name?

Answer: spouse


Question: Context : General Sir Francis Seymour, 1st Baronet, GCB (2 August 1813, Lisburn, County Down -- 10 July 1890, Kensington Palace, London) was a British Army officer and courtier. 
Question : What was the military branch for Sir Francis Seymour, 1st Baronet?

Answer: military branch


Question: Context : The first Valemax vessel, Vale Brasil, was delivered in 2011. 
Question : What year was Valemax commissioned?

Answer:
service entry