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.

Context : While Robin searches for her 'Something Old', Lily and Marshall prepare for their 'Something New' by packing up for their move to Italy. 
Question : What is the series that Something Old is a part of?
series

Context : The Telemundo brand traces back to the sign-on of WKAQ-TV (channel 2) in San Juan, Puerto Rico on March 28, 1954, which was founded by Ángel Ramos -- owner of Puerto Rico's main newspaper at the time, El Mundo, and the U.S. territory's first radio station, WKAQ (also known as ``Radio El Mundo''). 
Question : What is Telemundo's parent company?
parent company

Context : The Cessna 210 Centurion is a six-seat, high-performance, retractable-gear, single-engine, high-wing general aviation aircraft which was first flown in January 1957 and produced by Cessna until 1985. 
Question : In what year did Cessna 210 enter service?

service entry