Two kids are having fun climbing.
Two kids climbing on a jungle gym.
A jungle gym isn't the only thing the kids could have been climbing on.
exists e1 x1 x2 x3.(Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_climb(x2) & of(x2,x3) & n_fun(x3) & n_kid(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4.(a_topic(x1) & on(e1,x3) & n_gym(x3) & of(x3,x4) & n_jungle(x4) & Actor(e1,x2) & v_climb(e1) & (x1 = x2) & n_kid(x1) & card_eq_2(x1))