Assertion: otter's threat | /r/HasProperty | boat strikes
Facets:
Source sentences:
text: Other than natural predators, threats to sea otters include pollution, diseases, parasites, entanglement in marine debris, and boat strikes.
text: Other threats to sea otters include parasites, entanglements, boat strikes, toxins, and infectious diseases.
text: Other threats to sea otters include infectious diseases, parasites, boat strikes, entanglements, and toxins.