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Life magazine reported on several cases on June 12 , 1964 , and on April 19 , 1937 , calling them " X-ray wonders " , but all of them were found to be cheating when tested under controlled conditions .
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Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
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