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ICAD ( Corporate history : ICAD , Inc. , Concentra , KTI , Dassault Systemes ) is a Knowledge-Based Engineering ( KBE ) system that enables users to encode design knowledge using a semantic representation that can be evaluated for parasolid output .
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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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