Commodities,what do they mean requested by the burgger plots depending on their level.

Ok I understand english, level 1 doesnt take commodities, but then level two take any of them and only one of them. I notice it now, all of them took shoes but they didnt take cloak , why? Beside why the dev doesnt add information about what kind of commidities he got, at least it should be in generals. And if level 2 took shoes what do they mean by the title