196537
The fact that the races were held on the rock and not on artificial walls put the organizers in front of several issues that eventually lead to move climbing competitions to artificial walls only .
 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