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Liquid Metal Jetting ( LMJ ) involves the jetting of molten metal in a process similar to inkjet printing , whereby individual molten droplets are ejected and connected to each other .
 manufacturing process: Liquid Metal Jetting; manufacturing process: LMJ; manufacturing process: jetting; material: molten metal; concept or principle: process; manufacturing process: inkjet printing; concept or principle: droplets
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: Liquid Metal Jetting; manufacturing process: LMJ; manufacturing process: jetting; material: molten metal; concept or principle: process; manufacturing process: inkjet printing; concept or principle: droplets