53864
The total number of degree confluences is 64,442 , of which 21,543 are on land , 38,409 on water , and 4,490 on the Antarctic and Arctic ice caps .
 Antarctic, Arctic
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:
 Antarctic, Arctic