49841
The show originally aired from August 6 , 2002 to November 9 , 2007 on the Discovery Channel , which produced four seasons of 39 episodes .
 organization: Discovery Channel
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Discovery Channel 
Answer:
 organization: Discovery Channel