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For specimens excavated from a large circular mockup , the specimen shape has no significant effect on the through-thickness axial stress distribution , while it has a significant effect on the hoop stress distribution .
 machanical property: stress distribution; machanical property: stress distribution
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: stress distribution, stress distribution 
Answer:
 machanical property: stress distribution; machanical property: stress distribution