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In this work , we incorporate a reversible addition-fragmentation chain transfer ( RAFT ) agent into a glassy acrylate formulation to modify mechanical properties and improve resolution of objects printed using digital light processing ( DLP ) SL .
 machine or equipment: RAFT; concept or principle: mechanical properties; process parameter: resolution; manufacturing process: digital light processing; manufacturing process: DLP; manufacturing process: SL
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: RAFT, mechanical properties, resolution, digital light processing, DLP, SL 
Answer:
 machine or equipment: RAFT; concept or principle: mechanical properties; process parameter: resolution; manufacturing process: digital light processing; manufacturing process: DLP; manufacturing process: SL