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Increase in compressive yield strength after thermal cycling could be attributed to precipitation of Cr2Nb particles in GRCop-84 matrix along with strengthening due to gamma phases in Inconel 718 .
 machanical property: yield strength; process parameter: thermal cycling; material: be; concept or principle: precipitation; concept or principle: particles; manufacturing process: strengthening; material: Inconel 718
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: yield strength, thermal cycling, be, precipitation, particles, strengthening, Inconel 718 
Answer:
 machanical property: yield strength; process parameter: thermal cycling; material: be; concept or principle: precipitation; concept or principle: particles; manufacturing process: strengthening; material: Inconel 718