Assertion: dugong's ear | /r/CapableOf | lack pinna
Facets:
Source sentences:
text: Their ears, which lack pinna, are located on the sides of their head.
text: Their ears, which lack pinnae, are located on the sides of their head.
text: Their ears, which lack pinnae, are located on the sides of their head.
text: Their ears, which lack pinnae, are located on the sides of their head.