Assertion: tetra's marking | /r/HasProperty | black
Facets:
Source sentences:
text: However, the Ornate Tetra always has white-tipped fins while the Rosy may or may not, and the Rosy Tetra has a black marking or 'flag' on its dorsal fin.
text: The Rosy Tetra has a black marking or 'flag' on its dorsal fin extension and will sometimes (but not always) have white-tipped fins.
text: The Rosy Tetra will have a black marking or 'flag' on its dorsal fin extension, and will sometimes (but not always) have white tips to the fins.