Two men are sitting working on their computers.
The men are standing at a bar.
Two men cannot be standing at the same time they are sitting.
exists e1 e2 x1 x2.(for(e1,e2) & on(e2,x2) & n_computer(x2) & of(x2,x1) & n_thing(x1) & Actor(e2,x1) & v_work(e2) & Actor(e1,x1) & v_sit(e1) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2.(n_man(x1) & at(e1,x2) & n_bar(x2) & Actor(e1,x1) & v_stand(e1))