268620
The author is usually thought of as the Cistercian abbot Ailred of Rievaulx , an identification that is probable if not certain .
 person: Ailred of Rievaulx
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: Ailred of Rievaulx 
Answer:
 person: Ailred of Rievaulx