Assertion: retina's cone | /r/HasProperty | fmb
Facets:
Source sentences:
text: One type of horizontal cell is depicted along with four bipolar cell types; flat (OFF-) and invaginating (ON-) midget bipolar cells that contact a single cone (FMB and IMB), diffuse bipolars that contact several cones (IDB), and rod bipolars (RB) that contact only rods.