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Numerical results indicate that the designs obtained by this approach exhibit improved printability as they have fewer overhanging features .
 engineering feature: designs; process parameter: printability; material: as; engineering feature: overhanging features
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: designs, printability, as, overhanging features 
Answer:
 engineering feature: designs; process parameter: printability; material: as; engineering feature: overhanging features