6374
Validation was conducted by comparing simulation melt pool widths and depths against experimental measurements for Inconel 718 built at beam powers of 150 W , 200 W and 300 W and a scan speed of 200 mm/s .
 concept or principle: Validation; enabling technology: simulation; material: melt pool; concept or principle: experimental; material: Inconel 718; machine or equipment: beam; process parameter: scan speed
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: Validation, simulation, melt pool, experimental, Inconel 718, beam, scan speed 
Answer:
 concept or principle: Validation; enabling technology: simulation; material: melt pool; concept or principle: experimental; material: Inconel 718; machine or equipment: beam; process parameter: scan speed