Assertion: polka dot stingray | /r/HasProperty | a species of freshwater fish
Facets:
value: in the family
type: OTHER
Source sentences:
text: The Xingu River ray, white-blotched river stingray, or polka-dot stingray (Potamotrygon leopoldi) is a species of freshwater fish in the family Potamotrygonidae.