178195
Radiation below 100 keV is classified as X-rays and is the subject of X-ray astronomy ( astronomical literature tends to hyphenate " gamma-ray " by analogy with the term " X-ray " ) .
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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:
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