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Polymer extrusion three dimensional ( 3D ) printing , such as fused deposition modeling ( FDM ) , has recently garnered attention due to its inherent process flexibility and rapid prototyping capability .
 manufacturing process: Polymer extrusion; concept or principle: 3D; material: as; concept or principle: deposition modeling; manufacturing process: FDM; concept or principle: process; machanical property: flexibility; enabling technology: rapid prototyping
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: Polymer extrusion, 3D, as, deposition modeling, FDM, process, flexibility, rapid prototyping 
Answer:
 manufacturing process: Polymer extrusion; concept or principle: 3D; material: as; concept or principle: deposition modeling; manufacturing process: FDM; concept or principle: process; machanical property: flexibility; enabling technology: rapid prototyping