A family sitting on a picnic bench.
Two people are doing karate.
One cannot be sitting and doing karate simultaneously.
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & n_bench(x3) & of(x3,x4) & n_picnic(x4) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_family(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_karate(x2) & n_people(x1) & card_eq_2(x1))