3218
In this study , a copper powder-binder paste is developed , which is not only capable to be used for direct printing , but also to be cast using soft molds .
 material: copper; material: be; material: be; machine or equipment: molds
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: copper, be, be, molds 
Answer:
 material: copper; material: be; material: be; machine or equipment: molds