45950
Hibernation of swallows was considered a possibility even by as acute an observer as Rev. Gilbert White , in his " The Natural History and Antiquities of Selborne " ( 1789 , based on decades of observations ) .
 person: Gilbert White
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: Gilbert White 
Answer:
 person: Gilbert White