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Expanding on prior process mapping work by the authors , multiple melt pool crosB-sections are measured at multiple process parameter combinations for the Inconel 718 alloy in a Laser Powder Bed Fusion ( L-PBF ) process .
 concept or principle: process; material: melt pool; concept or principle: crosB-sections; concept or principle: process parameter; material: Inconel 718 alloy; manufacturing process: Laser Powder Bed Fusion; manufacturing process: L-PBF; concept or principle: 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: process, melt pool, crosB-sections, process parameter, Inconel 718 alloy, Laser Powder Bed Fusion, L-PBF, process 
Answer:
 concept or principle: process; material: melt pool; concept or principle: crosB-sections; concept or principle: process parameter; material: Inconel 718 alloy; manufacturing process: Laser Powder Bed Fusion; manufacturing process: L-PBF; concept or principle: process