Three men are working on a metal machine.
Three men are at a cafe sitting at a table
One is not sitting while also working on a metal machine.
exists e1 x1 x2 x3.(on(e1,x2) & n_machine(x2) & of(x2,x3) & n_metal(x3) & Actor(e1,x1) & v_work(e1) & n_man(x1) & card_eq_3(x1))
exists p1 x1.(exists e1 x2 x3 x4.(at(x1,x2) & at(e1,x4) & n_table(x4) & Actor(e1,x3) & v_sit(e1) & (x2 = x3) & n_cafe(x2)) & n_man(x1) & card_eq_3(x1))