Two boys splash in the big ocean.
Two young boys are flying inside the ocean.
Splashing and flying are different activities.
exists e1 s1 x1 x2.(n_ocean(x2) & a_big(s1) & Theme(s1,x2) & in(e1,x2) & Actor(e1,x1) & v_splash(e1) & n_boy(x1) & card_eq_2(x1))
exists e1 s1 x1 x2.(n_ocean(x2) & inside(e1,x2) & Actor(e1,x1) & v_fly(e1) & n_boy(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))