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The present study demonstrates for the first time a unique UK-designed and built Additive Manufacturing ( AM ) hybrid system that combines polymer based structural deposition with digital deposition of electrically conductive elements .
 manufacturing process: Additive Manufacturing; manufacturing process: AM; enabling technology: hybrid system; material: polymer; concept or principle: deposition; concept or principle: deposition; concept or principle: electrically; material: elements
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: Additive Manufacturing, AM, hybrid system, polymer, deposition, deposition, electrically, elements 
Answer:
 manufacturing process: Additive Manufacturing; manufacturing process: AM; enabling technology: hybrid system; material: polymer; concept or principle: deposition; concept or principle: deposition; concept or principle: electrically; material: elements