In the autumn , two men run in opposite directions down a path that leads over a bridge and through the woods , while two others walking a dog are stopped on the bridge .
There is a very good chance that two men are running on treadmills inside in a crowded gym .
It is impossible that two men are running on treadmills inside in a crowded gym .
There is a very good chance that two men are running on treadmills inside in a crowded gym .
Two men are running on treadmills inside in a crowded gym .