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.

Positive Example 1 -
Input: Context : Isaac Nicola Romero (1916 in Havana, Cuba -- 1997) was a prominent Cuban guitarist and one of the founders of the modern Cuban Guitar School. 
Question : What was Isaac Nicola's city of birth?
Output: place of birth

Positive Example 2 -
Input: Context : Both Timur and Demir are popular male names in Turkey today. 
Question : What was the title that Timur held?
Output: noble title

Negative Example 1 -
Input: Context : Faye Wong (born 8 August 1969) is a Chinese singer-songwriter and actress based in Hong Kong, often referred to as a ``diva'' in Hong Kong media. 
Question : When did Faye Wong born ?
Output: sex or gender

Negative Example 2 -
Input: Context : The Boeing 601 (sometimes referred to as the BSS-601, and previously as the HS-601) is a communications satellite bus introduced in 1987 by Hughes Space and Communications Company. 
Question : Which was the official year for the approval of Boeing 601?
Output: time of invension

Now complete the following example -
Input: Context : Mike Myers as Shrek Eddie Murphy as Donkey Cameron Diaz as Princess Fiona John Lithgow as Lord Farquaad Vincent Cassel as ``Monsieur'' Robin Hood Conrad Vernon as Gingerbread Man Chris Miller as Geppetto/ Magic Mirror Cody Cameron as Pinocchio / The Three Little Pigs Simon J. Smith as Three Blind Mice Christopher Knights as Three Blind Mice and Thelonius Aron Warner as Big Bad Wolf Jim Cummings as Captain of the Guards Kathleen Freeman as Old Woman (Donkey's ex-owner) Andrew Adamson as Duloc Mascot (a man dressed in a suit that looks like Lord Farquaad) Bobby Block as Baby Bear from the Three Bears Michael Galasso as Peter Pan Elisa Gabrielli as additional voices 
Question : What production company or companies created Shrek?
Output: 


Answer: production company