8160
Sisal fibers are considered to be a promising reinforcement in composites because of their low cost , high strength , and lack of risk to human health .
 material: fibers; material: be; process parameter: reinforcement; material: composites; machanical property: strength
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: fibers, be, reinforcement, composites, strength 
Answer:
 material: fibers; material: be; process parameter: reinforcement; material: composites; machanical property: strength