188541
She went on to compete in Primal Quest , an expedition-length adventure race that has been called one of the most difficult athletic events in the world and was cited as the most prestigious expedition event in North America .
 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