A person is chopping vegetables on a cutting board.
A chef prepares vegetables for tonight's dinner service.
Not everyone is a chef. Not all meals are a dinner service.
exists e2 e1 x1 x2 x3.(on(e1,x3) & n_board(x3) & Actor(e2,x3) & v_cut(e2) & Theme(e1,x2) & Actor(e1,x1) & v_chop(e1) & n_vegetable(x2) & n_person(x1))
exists e1 x1 x2 x3 x4 x5.(for(e1,x4) & n_service(x4) & of(x4,x5) & n_dinner(x5) & of(x4,x3) & n_tonight(x3) & Theme(e1,x2) & Actor(e1,x1) & v_prepare(e1) & n_vegetable(x2) & n_chef(x1))