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In the 1970 s , Dana Scott showed that , if only continuous functions were considered , a set or domain " D " with the required property could be found , thus providing a model for the lambda calculus .
 person: Dana Scott
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: Dana Scott