80909
Together with the 3D glasses that were packaged with the game , designed around the Pulfrich effect , this provided a unique " 3D " experience for the time when polygonal 3D graphics were rudimentary and too expensive to implement .
 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