TASK DEFINITION: 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.
PROBLEM: Context : However, in 644, Hormuzan was killed by Umar's son 'Ubaid-Allah, after an involvement in a plot which killed Umar. 
Question : Which war did Hormuzan participate in?

SOLUTION: conflict

PROBLEM: Context : ``The C Word'' was written by series creator, executive producer and lead actress Tina Fey, making it her seventh writing credit after the pilot episode, ``The Aftermath'', ``Tracy Does Conan'', ``The Head and the Hair'', ``Black Tie'', and ``Up All Night''. 
Question : Which series is The C Word apart of?

SOLUTION: series

PROBLEM: Context : Claudia Emerson (January 13, 1957 -- December 4, 2014) was an American poet. 
Question : Which award was bestowed upon Claudia Emerson?

SOLUTION:
award received