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More modern pieces showing styles of abstract expressionism , pop art , and art of the 1970 s through the end of the century can also be found represented by artists such as Arshile Gorky , Jackson Pollock , Clyfford Still , and Andy Warhol .
 person: Arshile Gorky; person: Jackson Pollock; person: Clyfford Still; person: Andy Warhol
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: Arshile Gorky, Jackson Pollock, Clyfford Still, Andy Warhol 
Answer:
 person: Arshile Gorky; person: Jackson Pollock; person: Clyfford Still; person: Andy Warhol