Assistant:
<execute>
goto("shelf 1")
goto("shelf 2")
goto("shelf 3")
</execute>

Observation:
On the shelf 1, you see nothing.
On the shelf 2, you see a creditcard 2, and a pen 2.
On the shelf 3, you see a creditcard 3, a desklamp 1, and a mug 1.
Assistant:
<execute>
take("mug 1", "shelf 3")
use("desklamp 1")
</execute>

Observation:
You pick up the mug 1 from the shelf 3.
You turn on the desklamp 1.
