Edge

From FLWiki

Also called an arrow, line or rarely link.

An edge is an element of a Flying Logic document that represents a relationship between two entities, and which is displayed as an arrow. The entity (or junctor) at the tail of the arrow is the predecessor, and the entity (or junctor) at the head of the arrow is the successor. Confidence values flow from successors to predecessors along edges, and are modified by their edge weight along the way.