3151
It is particularly true for the Electron Beam Melting ( EBM® ) process , where only a few materials are commercially available , which significantly limits the use of the method .
 manufacturing process: Electron Beam Melting; concept or principle: process; concept or principle: materials; concept or principle: limits
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: Electron Beam Melting, process, materials, limits 
Answer:
 manufacturing process: Electron Beam Melting; concept or principle: process; concept or principle: materials; concept or principle: limits