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These challenges came from psychiatrists like Thomas Szasz , who argued mental illness was a myth used to disguise moral conflicts ; from sociologists such as Erving Goffman , who said mental illness was another example of how society labels and controls non-conformists ; from behavioural psychologists who challenged psychiatry 's fundamental reliance on unobservable phenomena ; and from gay rights activists who criticised the APA 's listing of homosexuality as a mental disorder .
 person: Thomas Szasz; person: Erving Goffman; organization: APA
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: Thomas Szasz; person: Erving Goffman; organization: APA