9152
The prototype system achieves a volumetric build rate of 127 cm3/hr , which is approximately 7-fold greater than commercial desktop FFF systems , at comparable resolution ; the maximum extrusion rate of the printhead is ∼14-fold greater ( 282 cm3/hr ) than our benchmarks .
 concept or principle: prototype; process characterization: build rate; manufacturing process: FFF; process parameter: resolution; process parameter: extrusion rate
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: prototype, build rate, FFF, resolution, extrusion rate 
Answer:
 concept or principle: prototype; process characterization: build rate; manufacturing process: FFF; process parameter: resolution; process parameter: extrusion rate