375536
T-FLEX CAD supports a unified mode of operations for all types of documents and entities : drawings , assembly drawings , solids , surfaces , parts , parts with multiple solid bodies , assembly models , sheet metal , bill of materials , etc. .
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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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