If I was trying to build a garden shed, categorise each of the following as either "useful" or "not useful". A banana,  a hammer, nails, screws, personal protective equipment, an assistant, wood, kitchen knife, spoon, ice, magnifying glass
The following items would be "useful" to help you build a garden shed: 

A hammer
Nails
Screws
Personal Protective Equipment 
An assistant 
Wood 

The following items are "not useful" to help you build a garden shed: 

Banana
Kitchen knife 
Spoon
Ice 
Magnifying glass
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.
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Answer the following query.
If I was trying to build a garden shed, categorise each of the following as either "useful" or "not useful". A banana,  a hammer, nails, screws, personal protective equipment, an assistant, wood, kitchen knife, spoon, ice, magnifying glass

user
The following items would be "useful" to help you build a garden shed: 

A hammer
Nails
Screws
Personal Protective Equipment 
An assistant 
Wood 

The following items are "not useful" to help you build a garden shed: 

Banana
Kitchen knife 
Spoon
Ice 
Magnifying glass
assistant