81384
In April 2012 , one of the committees of the São Paulo city council approved a bill to introduce congestion pricing within the same area as the existing road space rationing ( ) by the last digit of the license plate , which has been in force 1996 .
 São Paulo
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:
 São Paulo