8626
Mechanical test data showed a significant decrease in tensile strength ( > 60 % ) and failure strain ( > 50 % ) over the range of filament moisture levels investigated .
 Mechanical test, data, tensile strength, failure, range, filament
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:
 Mechanical test, data, tensile strength, failure, range, filament