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Bare and encapsulated tracks exhibited low electrical resistivity ( 1–3*10−6 Ω*m ) , and its change was more rapid on ABS and minor on PA and CoPA when increasing tensile and flexural strain up to 1.2 % and 0.8 % , respectively .
 concept or principle: encapsulated; process characterization: electrical resistivity; material: ABS; process characterization: PA; machanical property: tensile; machanical property: strain
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: encapsulated, electrical resistivity, ABS, PA, tensile, strain 
Answer:
 concept or principle: encapsulated; process characterization: electrical resistivity; material: ABS; process characterization: PA; machanical property: tensile; machanical property: strain