Assertion: narwhal's edge | /r/HasProperty | swept
Facets:
Source sentences:
text: The tail flukes of female narwhals have front edges that are swept back, and those of males have front edges that are more concave and lack a sweep-back.
text: The tail flukes of female narwhals have front edges that are swept back, and those of males have front edges that are more concave and lack a sweep-back.
text: The tail flukes of female narwhals have front edges that are swept back, and those of males have front edges that are more concave and lack a sweep-back.