68512
Due to the frequency of predictable activity , Parkfield has become one of the most important areas in the world for large earthquake research .
 location: Parkfield
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: Parkfield 
Answer:
 location: Parkfield