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From such an overlay , shared features can be interpolated to create a so-called " shared-feature pharmacophore " that shares all common interactions of several binding sites/ligands or extended to create a so-called " merged-feature " pharmacophore .
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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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