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Three cases studies are shown for using LUCIE to differentiate unit cell topologies for improved understanding of experimental and simulation-based results ( Case Study 1 ) , to identify unit cell topology options for reducing weight while maintaining yield stress or increasing yield stress without reducing weight ( Case Study 2 ) , and for quickly narrowing multiple options to an appropriate unit cell topology ( Case Study 3 ) .
 concept or principle: unit cell topologies; concept or principle: experimental; concept or principle: Case Study; concept or principle: unit cell topology; process parameter: weight; machanical property: yield stress; machanical property: yield stress; process parameter: weight; concept or principle: Case Study; concept or principle: unit cell topology; concept or principle: Case Study
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: unit cell topologies, experimental, Case Study, unit cell topology, weight, yield stress, yield stress, weight, Case Study, unit cell topology, Case Study 
Answer:
 concept or principle: unit cell topologies; concept or principle: experimental; concept or principle: Case Study; concept or principle: unit cell topology; process parameter: weight; machanical property: yield stress; machanical property: yield stress; process parameter: weight; concept or principle: Case Study; concept or principle: unit cell topology; concept or principle: Case Study