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The STL file creation process mainly converts the continuous geometry in the CAD file into a header , small triangles or coordinates triplet list of x , y and z coordinates and the normal vector to the triangles .
 manufacturing standard: STL; manufacturing standard: file; concept or principle: process; concept or principle: geometry; manufacturing standard: CAD file; concept or principle: header; concept or principle: coordinates triplet; material: y; process parameter: coordinates; concept or principle: normal vector
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: manufacturing standard, machanical property, manufacturing process, material, engineering feature, process parameter, machine or equipment, application, process characterization, enabling technology, biomedical, concept or principle 
Text: {0} 
Answer:
 manufacturing standard: STL; manufacturing standard: file; concept or principle: process; concept or principle: geometry; manufacturing standard: CAD file; concept or principle: header; concept or principle: coordinates triplet; material: y; process parameter: coordinates; concept or principle: normal vector