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.

[EX Q]: Context : At FCM Jammy and Savatier finished the Char 2C prototype, the other nine tanks being built almost simultaneously; all ten were delivered in 1921 and modified by the factory until 1923. 
Question : In which year was the service entry date for Char 2C?
[EX A]: service entry

[EX Q]: Context : Stalk of the Celery Monster is a 1979 short animated film written, directed and animated entirely in pencil by Tim Burton during his time as a student with the California Institute of the Arts. 
Question : What production company was involved in Stalk of the Celery Monster?
[EX A]: production company

[EX Q]: Context : Pedro de Alcántara Téllez-Girón, 9th Duke of Osuna, Grandee of Spain, (in full, Spanish: Don Pedro de Alcántara María Cayetano Ciriaco Rafael Domingo Vicente Téllez-Girón y Pacheco, noveno duque de Osuna, décimo marqués de Peñafiel, conde de Fontanar, décimo tercér conde de Ureña, señor de la villa de Morón de la Frontera, Archidona, El Arahal, Olvera, Ortejicar, Cazalla de la Sierra, Tiedra, Gumiel de Izán y Briones, Grande de España de 1ra clase, Camarero mayor del Rey, Notario mayor de los Reinos de Castilla, teniente general de los Reales Ejércitos, coronel del Regimiento de Reales Guardias Españoles y su Director general, miembro del Supremo Consejo de la Guerra, embajador extraordinario en Viena, 24 de la Real academia (10.7.1787), gentilhombre de cámara con ejercicio de Carlos III y de Carlos IV, caballero del Toisón de Oro (4.4.1794), Gran Cruz de la Orden de Carlos III), (8 August 1755 - 7 January 1807), was a Spanish nobleman. 
Question : What war did Pedro de Alcántara Téllez-Girón participate in?
[EX A]:
conflict