Assertion: river dolphin's environment | /r/HasProperty | separated
Facets:
value: from the wide and open ocean
type: LOCATION
Source sentences:
text: Factors such as diet (captive dolphins are often fed a strict diet that may not include the prey they normal consume or be prepared in a way they would normally consume it), a closed environment (being separated from the wide and open ocean) and a lack of a strong social structure (being separated from family and potential friends) may all contribute to the shorter lifespan of captive dolphins.