1784
" Heat energy , from gravitational collapse , impacts , tidal forces such as orbital resonances , or radioactive decay , also factors into whether an object will be ellipsoidal or not ; Saturn 's icy moon Mimas is ellipsoidal ( though no longer in hydrostatic equilibrium ) , but Neptune 's larger moon Proteus , which is similarly composed but colder because of its greater distance from the Sun , is irregular .
 location: Saturn; location: Mimas; location: Neptune; location: Proteus
Please list all entity words in the text that fit the category.Output format is "type1: word1; type2: word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 location: Saturn; location: Mimas; location: Neptune; location: Proteus