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By employing selective laser melting ( SLM ) , we demonstrate how Sn3Ag4Ti alloy can robustly bond to silicon via additive manufacturing .
 manufacturing process: selective laser melting; manufacturing process: SLM; material: alloy; material: silicon; manufacturing process: additive manufacturing
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, alloy, silicon, additive manufacturing 
Answer:
 manufacturing process: selective laser melting; manufacturing process: SLM; material: alloy; material: silicon; manufacturing process: additive manufacturing