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The differences in terms of microstructure and hardness of the aB-fabricated samples along the building direction were also in a good agreement with the evolution of temperature field .
 concept or principle: microstructure; machanical property: hardness; concept or principle: samples; process parameter: building direction; concept or principle: evolution; process parameter: temperature
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: microstructure, hardness, samples, building direction, evolution, temperature 
Answer:
 concept or principle: microstructure; machanical property: hardness; concept or principle: samples; process parameter: building direction; concept or principle: evolution; process parameter: temperature