71707
It was designed by Martin Schempp and Wolf Hirth and was produced the year after their first glider , the Göppingen Gö 1 .
 Martin Schempp, Wolf Hirth, Göppingen Gö 1
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Martin Schempp, Wolf Hirth, Göppingen Gö 1