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A functionally graded concrete part obtained by replacing sand with cork was produced and is evaluated .
 material: functionally graded concrete; material: sand; material: cork
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: functionally graded concrete, sand, cork 
Answer:
 material: functionally graded concrete; material: sand; material: cork