41285
In his 2008 book , " Gross National Happiness " , Arthur C. Brooks presents the finding that conservatives are roughly twice as happy as liberals .
 person: Arthur C. Brooks
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: Arthur C. Brooks 
Answer:
 person: Arthur C. Brooks