57547
These buildings include the Rathaus ( town hall ) , the Burgtheater , the University , the Parliament , the twin museums of natural history and fine art , and the Staatsoper .
 Rathaus, Burgtheater, University, Parliament, Staatsoper
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Rathaus, Burgtheater, University, Parliament, Staatsoper