I am reading the Shimano specs and I cannot figure out what is the "top sprocket". An example: https://bike.shimano.com/en-EU/product/component/sora-r3000/RD-R3000-SS.html
"Low sprocket" (I couldn' tell what it is, but the value is more meaningful) describes the rear sprocket, ok, "Total capacity" this I understand as well, but what is "Top sprocket" with min/max values 11/14T (accordingly)?