That will get you close but there's no guarantee it's a coupling.  What is a coupling? Is an adaptor a coupling? How about a reducing coupling? Or reducing adaptor?

This is where ServiceTypes come in handy but most don't build out their list of ServiceTypes intentionally, they just add a few and leave what's default. I typically make all my own servicetypes and "Coupling" is one of them so it's easy to identify.