2319
These mechanical properties and those of heat treated parts showed values comparable to annealed and T6 heat treated wrought products , respectively .
 concept or principle: mechanical properties; concept or principle: heat; concept or principle: heat; concept or principle: wrought
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: mechanical properties, heat, heat, wrought 
Answer:
 concept or principle: mechanical properties; concept or principle: heat; concept or principle: heat; concept or principle: wrought