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Johnson was instrumental in campaigning for the establishment of the West Virginia Schools for the Deaf and Blind in 1870 , after which he taught blind students at the institution 's School for the Blind for 43 years .
 organization: West Virginia Schools for the Deaf and Blind; organization: Blind
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: West Virginia Schools for the Deaf and Blind, Blind 
Answer:
 organization: West Virginia Schools for the Deaf and Blind; organization: Blind