Assertion: catfish's spot | /r/HasProperty | dark blue
Facets:
Source sentences:
text: They look similar to channel catfish; however, unlike channel catfish, blue catfish have no dark blue spots and have a straight edged adipose fin.
text: They have similar characteristics as channel catfish; however, unlike channel catfish, blue catfish have no dark blue spots, possess a straight edged adipose fin, and usually have more than 29 rays in their anal fin.