What's an example of a task that requires knowledge of physical objects to perform?
How to awaken Amazon Echo to ask it a question?

What's an example of a task that requires knowledge of physical objects to perform?
Remove rust from old metal fixtures.

What's an example of a task that requires knowledge of physical objects to perform?
how do you know if a crock pot is on?

What's an example of a task that requires knowledge of physical objects to perform?
Make a crayon holder.