4915
It was also observed that at decreased volume fractions the effect of geometry on the mechanical properties is more pronounced .
 process parameter: volume fractions; concept or principle: geometry; concept or principle: mechanical properties
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: volume fractions, geometry, mechanical properties 
Answer:
 process parameter: volume fractions; concept or principle: geometry; concept or principle: mechanical properties