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In contrast , the post annealing induced improvement to corrosion resistance for the wrought samples is due to the elimination of martensite phase which almost always exists after the plastic deformation during their production process .
 manufacturing process: annealing; concept or principle: corrosion resistance; concept or principle: wrought samples; material: martensite; machanical property: plastic deformation; manufacturing process: production; concept or principle: process
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: annealing, corrosion resistance, wrought samples, martensite, plastic deformation, production, process 
Answer:
 manufacturing process: annealing; concept or principle: corrosion resistance; concept or principle: wrought samples; material: martensite; machanical property: plastic deformation; manufacturing process: production; concept or principle: process