5543
3D printing with electrically conductive filaments enables rapid prototyping and fabrication of electronics , but the performance of such devices can be limited by the fact that the most conductive thermoplastic-based filaments for 3D printing are 3750 times less conductive than copper .
 manufacturing process: 3D printing; concept or principle: electrically; material: filaments; enabling technology: rapid prototyping; manufacturing process: fabrication; concept or principle: electronics; concept or principle: performance; material: be; material: filaments; manufacturing process: 3D printing; material: copper
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: 3D printing, electrically, filaments, rapid prototyping, fabrication, electronics, performance, be, filaments, 3D printing, copper 
Answer:
 manufacturing process: 3D printing; concept or principle: electrically; material: filaments; enabling technology: rapid prototyping; manufacturing process: fabrication; concept or principle: electronics; concept or principle: performance; material: be; material: filaments; manufacturing process: 3D printing; material: copper