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The filament for FFF was produced by extruding the mixture of SMPU , NaCl , and Tungsten at the desired composition .
 material: filament; manufacturing process: FFF; manufacturing process: extruding; material: NaCl; material: Tungsten; concept or principle: composition
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: filament, FFF, extruding, NaCl, Tungsten, composition 
Answer:
 material: filament; manufacturing process: FFF; manufacturing process: extruding; material: NaCl; material: Tungsten; concept or principle: composition