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In mathematics , given two partially ordered sets " P " and " Q " , a function " f " : " P " → " Q " between them is " Scott-continuous " ( named after the mathematician Dana Scott ) if it preserves all directed suprema .
 Dana Scott
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Dana Scott