31966
Guided tours of parts of the refuge are available at the city of Grayling , around which the widespread parcels of this refuge are centralized .
 Grayling
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:
 Grayling