The quartet goes to a mining pit to learn about clay and see how hard the work is!
Then, they visit the place that was the model for the pottery club room!
It's not enough, that'll 
get you maybe this much.
لا يكفي، سيعطيك قرابة هذا المقدار فحسب
Nein … Daraus bekommt ihr etwa so viel.
C’est toujours pas assez ?
Direi di no.
É pouco. Acho que isso
vira só esse tanto.
Нет. Из этого получится
примерно такая лепёшка.