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According to the critic Bob Gulla , the band 's sound " shows up in virtually all of grunge 's most popular bands , including Nirvana , Soundgarden , and Alice in Chains " .
 person: Bob Gulla; organization: Nirvana; organization: Soundgarden; organization: Alice in Chains
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:
 person: Bob Gulla; organization: Nirvana; organization: Soundgarden; organization: Alice in Chains