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Erhard Geißler ( * 17 December 1930 in Leipzig , Germany ) is a German biologist and geneticist .
 person: Erhard Geißler; location: Leipzig; location: Germany
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 person: Erhard Geißler; location: Leipzig; location: Germany