893
Goodridge , Shofner also confirmed enhancement in mechanical properties of PA12 with inclusion of CNT , exhibiting 22 % increase in storage modulus .
 concept or principle: mechanical properties; material: PA12; material: inclusion; material: CNT
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:
 concept or principle: mechanical properties; material: PA12; material: inclusion; material: CNT