What was the question for this implicit rationale, and corresponding answer?
Preparation of a racetrack may describe a very large number of actions before the staging of vehicles.
 The answer: it is not possible to tell
The question: Premise: "A man in a green shirt directs trucks in preparation of the racetrack."
Hypothesis: "A man is directing trucks to staging areas on the racetrack so that the race can begin."
Do we know that the hypothesis entailed by the premise?