59995
This islet was a volcanic rock surrounded by cliffs that made it inaccessible to humans , but in 1830 , the islet submerged after a volcanic eruption , and the birds moved to the nearby island of Eldey , which was accessible from a single side .
 Eldey
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:
 Eldey