However, although almost any scenario where one wrestler is covering another prone, back-first wrestler can be considered a pin attempt, there is one important exception to that rule: Pin attempts broken up by other wrestlers. In matches involving multiple wrestlers (such as triple threat matches or tag team matches), wrestlers who see a pin attempt that, if successful, would result in them losing the match are expected to run in and break the pin attempt by performing some sort of offensive maneuver on the wrestler attempting the pin. The most common attacks for breaking pins are a stomp to the back and an elbow to the back of the head, as they are simple to pull off in the spur of the moment. However, these moves, simple as they are, still leave the pinning wrestler on top of the pinned wrestler. Despite the pinning wrestler still technically being on top of the pinned wrestler, the referee will still consider the pin attempt to be broken.

Answer this question, if possible (if impossible, reply "unanswerable"): What is a common offensive move to break a pin attack?
a stomp to the back and an elbow to the back of the head