6998
It results in a relationship between effective Young modulus and relative density for any lattice structure .
 machanical property: Young modulus; machanical property: relative density; engineering feature: lattice structure
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: Young modulus, relative density, lattice structure 
Answer:
 machanical property: Young modulus; machanical property: relative density; engineering feature: lattice structure