84940
Underneath the thick atmospheres of the planets Uranus and Neptune , it is expected that these planets are composed of oceans of hot high-density fluid mixtures of water , ammonia and other volatiles .
 Uranus, Neptune
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:
 Uranus, Neptune