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A VGE allows researchers to simulate and explore those dynamic geographic phenomena and processes using geographic analysis models ( e.g. , the Fifth - Generation Pennsylvania State University/National Center for Atmospheric Research Mesoscale Model or Gaussian Plume Model ) .
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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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