8283
Mechanical tests on the SLS printed tubes confirmed the trends that were found in the standard test samples .
 process characterization: Mechanical tests; manufacturing process: SLS; concept or principle: trends; concept or principle: standard; concept or principle: samples
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: Mechanical tests, SLS, trends, standard, samples 
Answer:
 process characterization: Mechanical tests; manufacturing process: SLS; concept or principle: trends; concept or principle: standard; concept or principle: samples