68496
As the debate continued , Wilhelm became increasingly interested in social problems , especially the treatment of mine workers during their strike in 1889 .
 person: Wilhelm
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: Wilhelm 
Answer:
 person: Wilhelm