336095
They may offer only one type of service or combine several services to best serve a particular author group ; often they specialize in a subject area in which they have prior training or work experience .
 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