9347
Inspection by SEM revealed a layered microstructure with a stripe-like surface relief that originated from the presence of martensitic twins within the sample .
 process characterization: Inspection; process characterization: SEM; concept or principle: microstructure; concept or principle: surface; concept or principle: sample
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: Inspection, SEM, microstructure, surface, sample 
Answer:
 process characterization: Inspection; process characterization: SEM; concept or principle: microstructure; concept or principle: surface; concept or principle: sample