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In , Netfabb 's Selective Space Structures tool was utilized to create lattices from rectangular prisms and hexagonal geometries , which were subsequently manufactured using the PolyJet and SLM process for polymers and aluminium , respectively .
 machine or equipment: tool; concept or principle: lattices; engineering feature: hexagonal; concept or principle: geometries; concept or principle: manufactured; concept or principle: PolyJet; manufacturing process: SLM; concept or principle: process; material: polymers; material: aluminium
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:
 machine or equipment: tool; concept or principle: lattices; engineering feature: hexagonal; concept or principle: geometries; concept or principle: manufactured; concept or principle: PolyJet; manufacturing process: SLM; concept or principle: process; material: polymers; material: aluminium