A pilot dressed in a dark-colored sweater is sitting in the cock-pit of a plane with his hands crossed .
It is impossible that a pilot is walking down the aisle in the plane talking to passengers .
It is impossible that a pilot is walking down the aisle in the plane talking to passengers .
It is likely that a pilot is walking down the aisle in the plane talking to passengers .
A pilot is walking down the aisle in the plane talking to passengers .