5810
On the other hand , flowing properties are similar among the two virgin and recycled powders , with only a significant change in the fraction of fines for SLS material .
 concept or principle: properties; concept or principle: recycled; material: powders; concept or principle: fraction; manufacturing process: SLS; material: material
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: properties, recycled, powders, fraction, SLS, material 
Answer:
 concept or principle: properties; concept or principle: recycled; material: powders; concept or principle: fraction; manufacturing process: SLS; material: material