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His first full album , on Verve Records , was produced by guitarist Mike Bloomfield and vocalist and songwriter Nick Gravenites , who later were members of the band Electric Flag .
 organization: Verve Records; person: Mike Bloomfield; person: Nick Gravenites; organization: Electric Flag
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 organization: Verve Records; person: Mike Bloomfield; person: Nick Gravenites; organization: Electric Flag