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She was a well-known child star during the 1960s , best known as Susan Wells in the children 's adventure series Adventures of the Seaspray , but also had memorable guest appearances on Prisoner Cell Block H and A Country Practice in her later career .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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