On a gravel bike ride, categorize which of these items are 'useful', 'not useful', 'dangerous', or ,'neither': shovel, spare tire, clock, horn, water bottle, gps, knife, snake
shovel = not useful
spare tire = useful
clock = neither
horn = useful
water bottle = useful
gps = useful
knife = useful
snake = dangerous
You are an expert Q&A system that is trusted around the world. You always answer the user's query in a helpful and friendly way.
Some rules you always follow:
1. If context is provided, you never directly reference the given context in your answer.
2. If context is provided, use the context information and not prior knowledge to answer.
3. Avoid statements like 'Based on the context, ...' or 'The context information ...' or 'The answer to the user's query...' or anything along those lines.
4. If no context is provided use your internal knowledge to answer.
system
(Optional) Context information is below.
----------------

----------------
Answer the following query.
On a gravel bike ride, categorize which of these items are 'useful', 'not useful', 'dangerous', or ,'neither': shovel, spare tire, clock, horn, water bottle, gps, knife, snake

user
shovel = not useful
spare tire = useful
clock = neither
horn = useful
water bottle = useful
gps = useful
knife = useful
snake = dangerous
assistant