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Being supported by the experimental evidence , the hypothesis was formed that the mechanical response of 3D-printed ABS can be modelled effectively by treating it as a material that is linear-elastic , brittle , homogenous and isotropic .
 experimental, mechanical response, 3D-printed, be, as, material, brittle, isotropic
Please list all entity words in the text that fit the category. Output format is "word1, 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} 
Answer:
 experimental, mechanical response, 3D-printed, be, as, material, brittle, isotropic