I'll give you a question, please answer with step-by-step reasoning process.
If "A dragster is taking off and leaving a huge trail of smoke behind him." does that mean that "A dragster is competing in a race."?\nOptions:\n- yes\n- it is not possible to tell\n- no

it is not possible to tell
Just because the dragster is taking off doesn't mean it's competing in a race.

.

Final answer: it is not possible to tell