367888
It explores the moral responsibility — symbolized by the patients ' malignant tumors — of those implicated in the suffering of their fellow citizens during Stalin 's Great Purge , when millions were killed , sent to labor camps , or exiled .
 person: Stalin
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: Stalin 
Answer:
 person: Stalin