69169
John Byrne and Walt Simonson are artists who have , on occasion , inked their own work .
 person: John Byrne; person: Walt Simonson
Given options, please tell me the categories of all the listed entity words.Output format is "type1: word1; type2: word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
 Entities: John Byrne, Walt Simonson 
Answer:
 person: John Byrne; person: Walt Simonson