1088
Some experts believe feathers evolved specifically to support flight , while others say feathers evolved first to provide warmth or protection from water .
 person: Some experts; person: others
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: geographical social political, organization, person, location, facility, vehicle, weapon 
Text: {0} 
 Entities: Some experts, others 
Answer:
 person: Some experts; person: others