Consider the question. Premise: "Three bicyclists race around a curve."
Based on this premise, can we conclude that the hypothesis "Cyclists without helmets are racing each other." is true?
Options:
- yes
- it is not possible to tell
- no
 What is the step-by-step reasoning process to arrive at the answer: it is not possible to tell?
Cyclists don't have to be without helmets to be racing around a curve.