Two children play in the snow with a sled.
Two children eating frog legs in the summer.
There are two different times of the year described here. Summer typically does not have snow associated with it. Also there are two different activities, they are either sled in snow or eating frog legs, can not be doing both.
exists e1 x1 x2 x3.(n_snow(x2) & in(e1,x2) & with(x2,x3) & n_sled(x3) & Actor(e1,x1) & v_play(e1) & n_child(x1) & card_eq_2(x1))
exists e1 x1 x2 x3 x4 x5.(n_summer(x5) & a_topic(x1) & in(e1,x5) & Theme(e1,x3) & Actor(e1,x2) & v_eat(e1) & n_leg(x3) & of(x3,x4) & n_frog(x4) & (x1 = x2) & n_child(x1) & card_eq_2(x1))