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Variants The Schempp-Hirth SHK , a 17 meter Open Class glider , was also developed by Klaus Holighaus in 1965 from the SH-1 .
 Schempp-Hirth, Klaus Holighaus
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Schempp-Hirth, Klaus Holighaus