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New generation of selective Laser Melting ( SLM ) machines are evolving towards higher power lasers as well as multi laser systems in order to increase the productivity .
 manufacturing process: selective Laser Melting; manufacturing process: SLM; machine or equipment: machines; process parameter: power; material: as; material: as; enabling technology: laser; concept or principle: productivity
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: selective Laser Melting, SLM, machines, power, as, as, laser, productivity 
Answer:
 manufacturing process: selective Laser Melting; manufacturing process: SLM; machine or equipment: machines; process parameter: power; material: as; material: as; enabling technology: laser; concept or principle: productivity