For someone (agent muɴ-) to weed an upper retaining wall (loc ref -an, i-an), as described under 1.
elbāan
Elbāanyu nan payawyu ti natawan.
Weed (the upper retaining wall of) your pond field because it is grassy.
-an: labāan; i-an: elbāan
It is the responsibility of the owner of a pond field or yard to weed the retaining wall above; however, if someone else owns a pond field or yard above a retaining wall, it is that person's responsibility to keep the wall in repair.