5505
We propose that the addition of LaB6 provided a large amount of heterogenous nucleation sites for solidification and α phase formation .
 concept or principle: nucleation; concept or principle: solidification; concept or principle: phase
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: nucleation, solidification, phase 
Answer:
 concept or principle: nucleation; concept or principle: solidification; concept or principle: phase