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From a practical standpoint , standardised flexure tests would be better suited for experimental verification and therefore aid the comparison between both the TO-models and their physical counterparts .
 process characterization: flexure tests; material: be; concept or principle: experimental
Please list all entity words in the text that fit the category.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} 
Answer:
 process characterization: flexure tests; material: be; concept or principle: experimental