What's an example of a task that requires knowledge of physical objects to perform?
Store excess grocery bags.

What's an example of a task that requires knowledge of physical objects to perform?
To add natural color to your wood without using store bought stains.

What's an example of a task that requires knowledge of physical objects to perform?
How do you identify a ripe persimmon by sight?

What's an example of a task that requires knowledge of physical objects to perform?
How to prevent stains from forming at a desk from drinks?