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 : Directed by Tom Cherones, ``The Ex-Girlfriend'' was the first episode of the show filmed at CBS Studio Center in Los Angeles, California, the previous season having been filmed at Desilu Cahuenga in Hollywood. 
Question : What series is The Ex-Girlfriend from?

SOLUTION: series

PROBLEM: Context : ``The Way We Weren't'' is the twentieth episode of The Simpsons' fifteenth season. 
Question : What series is The Way We Weren't part of?

SOLUTION: series

PROBLEM: Context : The President of the United States of America, authorized by Act of Congress, July 9, 1918, takes pleasure in presenting the Army Distinguished Service Medal to Colonel (Corps of Engineers) Francis Bowditch Wilby (ASN: 0-2023), United States Army, for exceptionally meritorious and distinguished services to the Government of the United States, in a duty of great responsibility during World War I. As Assistant in charge of Military Engineering in the Office of the Chief Engineer, American Expeditionary Forces, and later as Division Engineer of the 1st Division, Colonel Wilby displayed unusual ability and professional attainments of a high order. 
Question : The college Francis Bowditch Wilby attended was what?

SOLUTION:
educated at