7597
Recycled PET had the highest tensile strength at 35 ± 8 MPa .
 concept or principle: Recycled; machanical property: tensile strength; concept or principle: MPa
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: Recycled, tensile strength, MPa 
Answer:
 concept or principle: Recycled; machanical property: tensile strength; concept or principle: MPa