7601
Elongation to failure was generally improved for the blended materials compared to neat recycled PET and PS .
 machanical property: Elongation; concept or principle: failure; concept or principle: materials; concept or principle: recycled
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: Elongation, failure, materials, recycled 
Answer:
 machanical property: Elongation; concept or principle: failure; concept or principle: materials; concept or principle: recycled