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Neutron Bragg edge imaging showed a change in crystallographic structure and/or texture at a pre-existing fracture , but did not provide evidence for presumptive crack formation .
 concept or principle: Neutron; application: imaging; concept or principle: structure; engineering feature: texture; concept or principle: fracture
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: Neutron, imaging, structure, texture, fracture 
Answer:
 concept or principle: Neutron; application: imaging; concept or principle: structure; engineering feature: texture; concept or principle: fracture