This illustration shows a portion of the Travel Request Process, which contains the following:

Three equal horizontal regions called swimlanes.Each swimlane contains a single flow element.

In the top swimlane there is the Redo Travel Request submit human task with a sequence flow pointing to the Approve Travel Request approve human task in the middle swimlane.

There is a sequence flow out of the right side of the Approve Travel Request task, but you can't see what it points to.

In the bottom swimlane is the Supervisor Approved? exclusive gateway with two sequence flows.

The Yes sequence flow points to the Approve Travel Request task in the middle swimlane.

The other sequence flow (selected and not labeled) points to the Redo Travel Request task.