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 : Filmed primarily in Canada with a Canadian director (Ted Kotcheff), Switching Channels features many popular Canadian character actors in supporting roles: 
Question : The Switching Channels is based upon what?
based on

Context : Bored of the Rings is a parody of J. R. R. Tolkien's The Lord of the Rings. 
Question : Which is the basis of Bored of the Rings?
based on

Context : Blackie & Kanuto (or for some specific countries in a different version -- editing & dialogues - called Head over Hooves) is an animated comedy adventure film directed by Francis Nielsen and produced by Baleuko, Lumiq Studios, Film Investment Piedmont, Art'Mell and Talape. 
Question : What production company was involved in Blackie & Kanuto?

production company