3337
Experimental results support the numerical predictions and identify a proportional size scaling between beta grain widths and melt pool widths .
 concept or principle: Experimental; application: support; concept or principle: predictions; concept or principle: grain; material: melt pool
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: Experimental, support, predictions, grain, melt pool 
Answer:
 concept or principle: Experimental; application: support; concept or principle: predictions; concept or principle: grain; material: melt pool