5709
The study demonstrated that the chemical functionality and the thermal properties of the printed PA 12 parts and the glass bead composite , were similar .
 concept or principle: thermal properties; process characterization: PA; material: glass bead; material: composite
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: thermal properties, PA, glass bead, composite 
Answer:
 concept or principle: thermal properties; process characterization: PA; material: glass bead; material: composite