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Here , an optimization algorithm is used to assess material fracture resistance in the presence of a crack .
 concept or principle: optimization algorithm; material: material; machanical property: fracture resistance
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: optimization algorithm, material, fracture resistance 
Answer:
 concept or principle: optimization algorithm; material: material; machanical property: fracture resistance