257184
Grooming , Gossip and the Evolution of language is a 1997 book by Robin Dunbar , arguing that language evolved from social grooming .
 person: Robin Dunbar
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: Robin Dunbar 
Answer:
 person: Robin Dunbar