9179
It is characterised by the use of lamps instead of lasers to heat and melt polymers and by fusing and detailing agents that are jetted on the polymeric particles to modify and to control their heat absorption and thus selectively melt them .
 concept or principle: heat; concept or principle: melt; concept or principle: fusing; concept or principle: particles; machanical property: heat absorption; concept or principle: melt
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: heat, melt, fusing, particles, heat absorption, melt 
Answer:
 concept or principle: heat; concept or principle: melt; concept or principle: fusing; concept or principle: particles; machanical property: heat absorption; concept or principle: melt