Premise: "A skateboarder sliding on a rail."\nBased on this premise, can we conclude that the hypothesis "A skateboarder shows off." is true?\nOptions:\n- yes\n- it is not possible to tell\n- no
Let's think step by step below.
it is not possible to tell
A skateboarder sliding on a rail may not always do so for showing off.

.

Final answer: it is not possible to tell