2515
A watershed album , it influenced singers from John Lennon and Gordon Lightfoot to John Denver .
 person: John Lennon; person: Gordon Lightfoot; person: John Denver
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 Lennon, Gordon Lightfoot, John Denver 
Answer:
 person: John Lennon; person: Gordon Lightfoot; person: John Denver