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Laser Engineered Net Shaping ( LENS™ ) , which is a laser based additive manufacturing method , was utilized to fabricate Ti-Al2O3 compositionally graded structures .
 manufacturing process: Laser Engineered Net Shaping; enabling technology: laser; manufacturing process: additive manufacturing; manufacturing process: fabricate
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: Laser Engineered Net Shaping, laser, additive manufacturing, fabricate 
Answer:
 manufacturing process: Laser Engineered Net Shaping; enabling technology: laser; manufacturing process: additive manufacturing; manufacturing process: fabricate