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The sensitivity analysis of the mechanical parameters shows that the thermal expansion coefficient as well as the elastic limit of Ti-6Al-4V have a great impact on the mechanical behavior .
 concept or principle: sensitivity analysis; application: mechanical; machanical property: thermal expansion coefficient; material: as; material: as; machanical property: elastic; material: Ti-6Al-4V; concept or principle: impact; application: mechanical
Given options, please tell me the categories of all the listed entity words.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} 
 Entities: sensitivity analysis, mechanical, thermal expansion coefficient, as, as, elastic, Ti-6Al-4V, impact, mechanical 
Answer:
 concept or principle: sensitivity analysis; application: mechanical; machanical property: thermal expansion coefficient; material: as; material: as; machanical property: elastic; material: Ti-6Al-4V; concept or principle: impact; application: mechanical