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Upon the information on in-plane stresses and orientation extracted from the software , the authors developed a MATLAB subroutine to create a functionally graded mesh , which was fed back into the software for analysis .
 concept or principle: orientation extracted; concept or principle: software; engineering feature: functionally graded mesh; concept or principle: software
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:
 concept or principle: orientation extracted; concept or principle: software; engineering feature: functionally graded mesh; concept or principle: software