How do I get the soap?

Hint 1 of 4:

The soap is underneath one of the cabinets, in case you didn't know.

Hint 2 of 4:

Try lifting the cabinet to find the soap.

Hint 3 of 4:

All you need now is a little bit of help.

Hint 4 of 4:

Fulbert can finish this puzzle for you.