Two boys are running in a metal barrel.
Two boys are juggling knives.
Juggling is different than running.
exists e1 x1 x2 x3.(in(e1,x2) & n_barrel(x2) & of(x2,x3) & n_metal(x3) & Actor(e1,x1) & v_run(e1) & n_boy(x1) & card_eq_2(x1))
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_juggle(e1) & n_knife(x2) & n_boy(x1) & card_eq_2(x1))