3640
Higher power runs resulted in voids forming in the bottom of the melt pool and were consistent with either electron beam welding or melting processes operating at higher temperatures .
 process parameter: power; concept or principle: voids; manufacturing process: forming; material: melt pool; manufacturing process: electron beam welding; manufacturing process: melting; process parameter: temperatures
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: power, voids, forming, melt pool, electron beam welding, melting, temperatures 
Answer:
 process parameter: power; concept or principle: voids; manufacturing process: forming; material: melt pool; manufacturing process: electron beam welding; manufacturing process: melting; process parameter: temperatures