4615
The columnar grain structure of the aB-built material was found to be maintained after post-treatment , with some sporadic localized grain coarsening noted .
 machanical property: columnar grain; material: material; material: be; manufacturing process: post-treatment; concept or principle: grain
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: columnar grain, material, be, post-treatment, grain 
Answer:
 machanical property: columnar grain; material: material; material: be; manufacturing process: post-treatment; concept or principle: grain