Premise: "Male riding a racing bicycle."\nBased on this premise, can we conclude that the hypothesis "A boy is racing his brother." is true?\nOptions:\n- yes\n- it is not possible to tell\n- no
Let's be accurate as possible and think first.
it is not possible to tell
Riding a racing bicycle may not necessarily mean one is racing.

.

Thus, the answer is it is not possible to tell