1475
LENS is used to melt the surface of the target point while a stream of powdered metal is delivered onto the small targeted point .
 manufacturing process: LENS; concept or principle: melt; concept or principle: surface; material: powdered metal
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: LENS; concept or principle: melt; concept or principle: surface; material: powdered metal