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The potential of the method is demonstrated through tensile tests of 3D printed soft polymer by accurately determining the stress–strain response and the Poisson 's ratio without using extensometers .
 process characterization: tensile tests; manufacturing process: 3D printed; material: polymer; process characterization: accurately
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: tensile tests, 3D printed, polymer, accurately 
Answer:
 process characterization: tensile tests; manufacturing process: 3D printed; material: polymer; process characterization: accurately