31147
In all of these cases in nature , the same brilliant iridescence ( or play of colors ) can be attributed to the diffraction and constructive interference of visible lightwaves that satisfy Bragg ’s law , in a matter analogous to the scattering of X-rays in crystalline solids .
 person: Bragg
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: Bragg 
Answer:
 person: Bragg