2471
The influence of the beam parameters , such as the beam size , scan speed and power , are investigated and both the cases of an exponential as well as a linear beam absorption profile are considered .
 machine or equipment: beam; material: as; machine or equipment: beam; process parameter: scan speed; process parameter: power; material: as; material: as; machine or equipment: beam; concept or principle: absorption
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: beam, as, beam, scan speed, power, as, as, beam, absorption 
Answer:
 machine or equipment: beam; material: as; machine or equipment: beam; process parameter: scan speed; process parameter: power; material: as; material: as; machine or equipment: beam; concept or principle: absorption