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But what sets sintering apart from melting is that the sintering processes do not fully melt the powder , but heat it to the point that the powder can fuse together on a molecular level .
 manufacturing process: sintering; manufacturing process: melting; manufacturing process: sintering; concept or principle: processes; concept or principle: melt; material: powder; concept or principle: heat; material: powder; manufacturing process: fuse
Please list all entity words in the text that fit the category.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} 
Answer:
 manufacturing process: sintering; manufacturing process: melting; manufacturing process: sintering; concept or principle: processes; concept or principle: melt; material: powder; concept or principle: heat; material: powder; manufacturing process: fuse