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The literature reports a considerable amount of γ′ phase in Ni/Fe-based superalloys processed by conventional metallurgy .
 concept or principle: phase; material: superalloys; concept or principle: processed; concept or principle: metallurgy
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: phase, superalloys, processed, metallurgy 
Answer:
 concept or principle: phase; material: superalloys; concept or principle: processed; concept or principle: metallurgy