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Build strategies often revolve around minimising the amount of supports or avoiding key surfaces for aesthetic or accuracy reasons .
 concept or principle: Build strategies; application: supports; concept or principle: surfaces; concept or principle: aesthetic; process characterization: accuracy
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: Build strategies; application: supports; concept or principle: surfaces; concept or principle: aesthetic; process characterization: accuracy