22651
When observed without glasses , some slight doubling can be noticed in the background of the action which allows the film or game to be watched in 2D without the glasses .
 None
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:  
Answer:
 None