6292
Several condensed matter experiments involve scattering of an experimental probe , such as X-ray , optical photons , neutrons , etc. , on constituents of a material .
 None
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities:  
Answer:
 None