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In this paper , to support the goal of manufacturing parts right the first time , a Bayesian network in continuous domain is developed which relates four process parameters ( laser power , scan speed , hatch spacing , and layer thickness ) and five part quality characteristics ( density , hardness , top layer surface roughness , ultimate tensile strength in the build direction and ultimate tensile strength perpendicular to the build direction ) .
 application: support; manufacturing process: manufacturing; concept or principle: domain; concept or principle: process parameters; process parameter: laser power; process parameter: scan speed; process parameter: hatch spacing; process parameter: layer thickness; concept or principle: quality; machanical property: density; machanical property: hardness; process parameter: layer; machanical property: roughness; machanical property: ultimate tensile strength; process parameter: build direction; machanical property: ultimate tensile strength; process parameter: build direction
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: support, manufacturing, domain, process parameters, laser power, scan speed, hatch spacing, layer thickness, quality, density, hardness, layer, roughness, ultimate tensile strength, build direction, ultimate tensile strength, build direction 
Answer:
 application: support; manufacturing process: manufacturing; concept or principle: domain; concept or principle: process parameters; process parameter: laser power; process parameter: scan speed; process parameter: hatch spacing; process parameter: layer thickness; concept or principle: quality; machanical property: density; machanical property: hardness; process parameter: layer; machanical property: roughness; machanical property: ultimate tensile strength; process parameter: build direction; machanical property: ultimate tensile strength; process parameter: build direction