The conversation between human and AI assistant.
[|Human|] Organize the following items in order of importance: wearing a helmet when biking.
[|AI|] 1. Wearing a helmet when biking.

Note: There is only one item in your input, so there is nothing to organize and order. Wearing a helmet when biking is vitally important for safety reasons.
[|Human|] 
Organize the following items in order of importance: wearing a helmet when biking.