344370
Duo is an acoustic album by Richard Marx and Vertical Horizon vocalist Matt Scannell .
 person: Richard Marx; person: Matt Scannell
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: Richard Marx, Matt Scannell 
Answer:
 person: Richard Marx; person: Matt Scannell