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It has been shown that quality of components built using selective laser sintering ( SLS ) are strongly affected by the thermal history of the building process .
 concept or principle: quality; machine or equipment: components; manufacturing process: selective laser sintering; manufacturing process: SLS; process characterization: building process
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: quality, components, selective laser sintering, SLS, building process 
Answer:
 concept or principle: quality; machine or equipment: components; manufacturing process: selective laser sintering; manufacturing process: SLS; process characterization: building process