341406
Bach scholar Alfred Dürr supposed that it is the same author who wrote Bleib bei uns , denn es will Abend werden , BWV 6 , first performed six days earlier on Easter Monday of 1725 .
 person: Bach; person: Alfred Dürr
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: Bach, Alfred Dürr 
Answer:
 person: Bach; person: Alfred Dürr