7950
As this example illustrates , the linear approximation of a functor ( on a topological space ) is its sheafification , thinking of the functor as a presheaf on the space ( formally , as a functor on the category of open subsets of the space ) , and sheaves are the linear functors .
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Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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