3009
By that time , the group 's line-up had changed with the arrival of Jet Harris , Tony Meehan , Hank Marvin and Bruce Welch .
 person: Jet Harris; person: Tony Meehan; person: Hank Marvin; person: Bruce Welch
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: Jet Harris; person: Tony Meehan; person: Hank Marvin; person: Bruce Welch