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In 1985 he started recording with Phenomena for their self-titled first album , which was released the same year , when he joined up with Keith Emerson and Greg Lake as a member of Emerson , Lake & Powell .
 organization: Phenomena; person: Keith Emerson; person: Greg Lake; organization: Emerson , Lake & Powell
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: Phenomena; person: Keith Emerson; person: Greg Lake; organization: Emerson , Lake & Powell