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Other original plays have been staged as amateur productions , with other actors playing the Doctor , while Terry Nation wrote " The Curse of the Daleks " , a stage play mounted in the late 1960 s , but without the Doctor .
 Terry Nation
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Terry Nation