228560
The song features Chris Daughtry and Robin Diaz on back-up vocals .
 person: Chris Daughtry
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: Chris Daughtry 
Answer:
 person: Chris Daughtry