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He and his first wife raised eight children , including an orphaned son of Lanson Clark , Richard C. Clark , for whom R. C. Clark High School ( also in PISD ) is named .
 organization: Clark; organization: C. Clark; organization: R. C. Clark High School
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: Clark, C. Clark, R. C. Clark High School 
Answer:
 organization: Clark; organization: C. Clark; organization: R. C. Clark High School