8007
In this process , the delivery of the binding agent is accomplished through a drop-on-demand ( DOD ) printhead by deposition of picoliter-sized droplets of the liquid binder .
 concept or principle: process; manufacturing process: DOD; concept or principle: deposition; concept or principle: droplets; material: liquid binder
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: process, DOD, deposition, droplets, liquid binder 
Answer:
 concept or principle: process; manufacturing process: DOD; concept or principle: deposition; concept or principle: droplets; material: liquid binder