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By contrast , the fracture mode of heat-treated DED 300 M steel is ductile fracture .
 concept or principle: fracture; manufacturing process: heat-treated DED; material: steel; concept or principle: ductile fracture
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: fracture, heat-treated DED, steel, ductile fracture 
Answer:
 concept or principle: fracture; manufacturing process: heat-treated DED; material: steel; concept or principle: ductile fracture