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Furthermore , the evolution of some macroscopic quality properties was measured.The results show that both microscopic ( porosity ) and macroscopic ( geometry , density ) properties of the samples improve through the process stages .
 concept or principle: evolution; concept or principle: macroscopic; concept or principle: properties; machanical property: porosity; concept or principle: macroscopic; concept or principle: geometry; machanical property: density; concept or principle: properties; concept or principle: samples; 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: evolution, macroscopic, properties, porosity, macroscopic, geometry, density, properties, samples, process 
Answer:
 concept or principle: evolution; concept or principle: macroscopic; concept or principle: properties; machanical property: porosity; concept or principle: macroscopic; concept or principle: geometry; machanical property: density; concept or principle: properties; concept or principle: samples; concept or principle: process