2025
Similar to lattice structures , which are made artificially , natural porous structures become a set of special elements to deal with specific design requirements .
 engineering feature: lattice structures; machanical property: porous; application: set; material: elements; engineering feature: design
Please list all entity words in the text that fit the category.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} 
Answer:
 engineering feature: lattice structures; machanical property: porous; application: set; material: elements; engineering feature: design