24007
During the second schedule scenes involving the lead cast were canned at Forest Research Institute , Dehradun and a car chase at various places in Chennai , while two songs were filmed in London and Buckingham during the third schedule .
 Forest Research Institute, Dehradun, Chennai, London, Buckingham
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: media, plant, vehicle, astronomical object, time, disease, animal, location, person, organization, mythical figure, food, biology, geographical phenomenon, instrument, event 
Text: {0} 
Answer:
 Forest Research Institute, Dehradun, Chennai, London, Buckingham