1022
After a year-long spate of official support , media hype , and after award of Congressional funding of $ 13 million , the GTX was put on hold for further study in April 2008 , for reasons still yet to-be explained .
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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:
 None