A man creating a clay object at a potters wheel.
A man using a potters wheel.
We have no idea if he is using the potters wheel now, he could have done it before.
exists e1 x1 x2 x3 x4 x5 x6.(a_topic(x1) & at(e1,x5) & n_wheel(x5) & of(x5,x6) & n_potter(x6) & Theme(e1,x3) & Actor(e1,x2) & v_create(e1) & n_object(x3) & of(x3,x4) & n_clay(x4) & (x1 = x2) & n_man(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_use(e1) & n_wheel(x3) & of(x3,x4) & n_potter(x4) & (x1 = x2) & n_man(x1))