9050
However , compared to traditional manufacturing techniques , the mechanical properties of AM materials and their resulting components are not well understood .
 manufacturing process: traditional manufacturing; concept or principle: mechanical properties; material: AM materials; machine or equipment: components
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: traditional manufacturing, mechanical properties, AM materials, components 
Answer:
 manufacturing process: traditional manufacturing; concept or principle: mechanical properties; material: AM materials; machine or equipment: components