9835
Some contemporary anarchist communists and advocates of post-left anarchy , such as Bob Black , reject the concept of work altogether in favor of turning necessary subsistence tasks into voluntary free play .
 person: Bob Black; disease: reject the concept of work
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
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Text: {0} 
Answer:
 person: Bob Black; disease: reject the concept of work