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He adopted a casual , conversational approach with extensive interaction with guests , an approach pioneered by Arthur Godfrey and previous " Tonight Show " hosts Steve Allen and Jack Paar .
 person: Arthur Godfrey; media: Tonight Show; person: Steve Allen; person: Jack Paar
Please list all entity words in the text that fit the category.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} 
Answer:
 person: Arthur Godfrey; media: Tonight Show; person: Steve Allen; person: Jack Paar