I think it is called a paradox. A paradox is when something seems to contradict itself, but is actually a correct statement. Think of the song "Paradox" from Pirates of Penzance, it is all about an incident that seems to be false yet is true!
"At the start of the American Revolution, both the British and the American colonists had many difficulties to face. The Americans were at a disadvantage due to their lack of experienced soldiers and supplies. The British underestimated the power of the North America the distance to travel to transport men and supplies, and most importantly, the united stand that the Americans shared in order to win their liberty. In order for the Americans to succeed in winning the war, they had to train their militias and learn military tactics to best attack the British."
Answer:
Locomotive operator I think. But the thing is is all of them carry people. But, a locomotive opertaor is a train conductor, and that has a higher chnace of carrying somethingother than people.