2805
After deformation , the dislocation density increased as a result of generation of new dislocations due to dislocation motion .
 concept or principle: deformation; machanical property: dislocation density; material: as; concept or principle: dislocations; concept or principle: dislocation motion
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: deformation, dislocation density, as, dislocations, dislocation motion 
Answer:
 concept or principle: deformation; machanical property: dislocation density; material: as; concept or principle: dislocations; concept or principle: dislocation motion