36563
It is headed by Tim Martin and Graham Williamson both former Aid worker .
 person: Tim Martin; person: Graham Williamson
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: Tim Martin, Graham Williamson 
Answer:
 person: Tim Martin; person: Graham Williamson