Assertion: alligator's membrane | /r/CapableOf | protect eye
Facets:
value: to cleanse its eyes
type: PURPOSE
Source sentences:
text: The Nile crocodile shares with all crocodilians a nictitating membrane to protect the eyes and lachrymal glands to cleanse its eyes with tears.
text: When the animal completely submerges, the nictitating membranes cover its eyes.
text: Alligators have semi-transparent membranes which cover their eyes when submerging under water.
text: They have a “nictitating membrane” to protect their eyes so that they can see underwater.