41721
In 1900 he was invited by Duke Karl-Alexander of Weimar to lead a masterclass for fifteen young virtuosi .
 person: Karl-Alexander; location: Weimar
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
 Entities: Karl-Alexander, Weimar 
Answer:
 person: Karl-Alexander; location: Weimar