71337
In 1754 , the " houses , buildings , orchard , ways and watercourses " of Raspberry Plain were purchased by Loudoun County 's first sheriff , Aeneas Campbell .
 location: Loudoun
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: Loudoun 
Answer:
 location: Loudoun