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However , despite Simon Cowell 's enthusiasm , he was unable to convince the other two judges , Amanda Holden and Piers Morgan , to let Sampson proceed to the live semi-finals .
 person: Simon Cowell; person: Amanda Holden; person: Piers Morgan; person: Sampson
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: Simon Cowell, Amanda Holden, Piers Morgan, Sampson 
Answer:
 person: Simon Cowell; person: Amanda Holden; person: Piers Morgan; person: Sampson