4724
Recently , we showed poly ( ethylene terephthalate ( PET ) powder is a suitable material for LS , with a comparable printing performance as the current front-runner , polyamide 12 ( PA12 ) .
 material: powder; material: material; concept or principle: printing performance; material: as; material: polyamide 12; material: PA12
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: powder, material, printing performance, as, polyamide 12, PA12 
Answer:
 material: powder; material: material; concept or principle: printing performance; material: as; material: polyamide 12; material: PA12