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He was defeated by a large margin in the 1998 federal elections by the Minister-President of Lower Saxony , Gerhard Schröder .
 location: Lower Saxony; person: Gerhard Schröder
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:
 location: Lower Saxony; person: Gerhard Schröder