31952
His place was taken by Bruno Walter as guest conductor for 1922 - 23 , then by Henri Verbrugghen .
 person: Bruno Walter; person: Henri Verbrugghen
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: Bruno Walter, Henri Verbrugghen 
Answer:
 person: Bruno Walter; person: Henri Verbrugghen