42243
In front of it is the Neptunbrunnen , a fountain featuring a mythological group of Tritons , personifications of the four main Prussian rivers and Neptune on top of it .
 Neptunbrunnen, Tritons, Neptune
Please list all entity words in the text that fit the category. Output format is "word1, word2". 
Option: location, person, organization 
Text: {0} 
Answer:
 Neptunbrunnen, Tritons, Neptune