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TamaB-Williams suggested two useful approaches to model the response of functionally graded components using the exponential law idealisation and material elements Finite Element Method analysis can also be used to show and suggest an optimised set of elements under pre-determined circumstances to provide a better understanding of how the material properties will behave .
 concept or principle: model; engineering feature: functionally graded components; material: material elements; concept or principle: Finite Element Method analysis; material: be; application: set; material: elements; concept or principle: material properties
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: model; engineering feature: functionally graded components; material: material elements; concept or principle: Finite Element Method analysis; material: be; application: set; material: elements; concept or principle: material properties