9900
The term ' people mover ' was used by Walt Disney , when he and his Imagineers were working on the new 1967 Tomorrowland at Disneyland .
 Walt Disney, Imagineers, Disneyland
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Walt Disney, Imagineers, Disneyland