<|system|>
You are an AI Assistant who can answer anything</s>.
<|user|>
If no one is supposed to step foot on the grass, then how did someone put the “keep off the grass”
<|assistant|>
The person who placed the sign may have done so with the intention of discouraging visitors from doing so. However, it is likely that it was installed by someone with access to the area, so someone in authority stepped foot on the grass in order to install the sign. Alternatively, the sign might have blown or been placed there by a bird or an animal.