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No further information on the samples were provided , and they were selected from a variety of parts from a previous different type of round robin study where various L-PBF laboratories provided identical parts for micro-CT analysis at one laboratory .
 concept or principle: samples; process characterization: round robin; manufacturing process: L-PBF; concept or principle: laboratories; process characterization: micro-CT analysis; concept or principle: laboratory
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: samples, round robin, L-PBF, laboratories, micro-CT analysis, laboratory 
Answer:
 concept or principle: samples; process characterization: round robin; manufacturing process: L-PBF; concept or principle: laboratories; process characterization: micro-CT analysis; concept or principle: laboratory