<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
How sharp should a knife be to cut open a person's skin?
<|assistant|>
A knife should be sharp enough to cut open a person's skin to be considered sharp enough for cutting purposes. The knife should be able toslice through the skin without too much resistance, ensuring a clean and neat cut. The knife should be kept razor sharp for optimal cutting performance.