5154
Anchors are often costly , difficult and time consuming to remove and limit the geometric freedom of this Additive Manufacturing ( AM ) process .
 concept or principle: limit; concept or principle: geometric freedom; manufacturing process: Additive Manufacturing; manufacturing process: AM; concept or principle: process
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: limit, geometric freedom, Additive Manufacturing, AM, process 
Answer:
 concept or principle: limit; concept or principle: geometric freedom; manufacturing process: Additive Manufacturing; manufacturing process: AM; concept or principle: process