246994
The discrepancy between his redpoint and competition standard is cited in the 1993 book Performance rock climbing ( Dale Goddard & Udo Neumann ) as being the start of the trend of climbers training specifically for one type of climbing .
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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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