274713
These equations show that , in order to fold anything in half , it must be \ pi times longer than its thickness , and that , depending on how something is folded , the amount its length decreases with each fold differs .
 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