16120
On August 20 , subsequent to the development of a low-level circulation , an area of convection along the wave developed into a tropical depression while located about 1,000 " miles ( 1,600 " km ) east-northeast of Grenada .
 Grenada
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:
 Grenada