n] empty[end if]."

Part 2 - Filling

Understand the command "fill" as something new.

Understand "fill [fluid container] with/from [full liquid source]" as filling it with. Understand "fill [fluid container] with/from [fluid container]" as filling it with.

Understand "fill [something] with/from [something]" as filling it with.

Filling it with is an action applying to two things. Carry out filling it with: try pouring the second noun into the noun instead.

Understand "pour [fluid container] in/into/on/on