1182
1 Structurally optimized lattices using the homogenization method To capture the heterogeneous nature of lattices , unit cells are commonly homogenized into representative volume elements .
 concept or principle: lattices; manufacturing process: homogenization method; concept or principle: heterogeneous; concept or principle: lattices; concept or principle: unit cells; manufacturing process: homogenized; concept or principle: volume; material: elements
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:
 concept or principle: lattices; manufacturing process: homogenization method; concept or principle: heterogeneous; concept or principle: lattices; concept or principle: unit cells; manufacturing process: homogenized; concept or principle: volume; material: elements