Assertion: manta ray | /r/HasAspect | triangular pectoral fins
Facets:
Source sentences:
text: Manta rays have triangular pectoral fins, broad heads, and gill slits on their ventral surfaces.
text: Manta rays have broad heads, triangular pectoral fins, and horn-shaped cephalic fins located on either side of their mouths.
text: Manta rays have broad heads, triangular pectoral fins, and horn-shaped cephalic fins located on either side of their mouths.