(3 2 ) [3ton sika nokotteinai] 2syuruino kinzokuo 2ton seirensita.
[3-CL.ton other-than remain-Prog-Neg] 2-CL.species-Gen metal-Acc 2-CL.ton purify-Past
(We) purified two tons of the two types of metal, of which only three tons re- mained.