2990
Several foam models with different porosities are generated , and utilized in nonlinear finite element analyses ( FEAs ) to determine constitutive elastic constants .
 material: foam; machanical property: porosities; concept or principle: finite element analyses; process parameter: elastic constants
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: foam, porosities, finite element analyses, elastic constants 
Answer:
 material: foam; machanical property: porosities; concept or principle: finite element analyses; process parameter: elastic constants