Four adults playing baseball, with a forest in the background.
While camping in the forest, the two couples decide to play a game of baseball.
Four adults are not necessarily two couples and a forest background does not imply they are camping.
exists e1 x1 x2 x3 x4 x5.(n_background(x5) & a_topic(x1) & with(e1,x4) & in(x4,x5) & n_forest(x4) & Theme(e1,x3) & Actor(e1,x2) & v_play(e1) & n_baseball(x3) & (x1 = x2) & n_adult(x1) & card_eq_4(x1))
exists e1 e2 p1 x1 x2 x3.(n_couple(x3) & card_eq_2(x3) & n_forest(x2) & while(e2,e1) & Topic(e2,p1) & Actor(e2,x3) & v_decide(e2) & exists e3 x4 x5.(Theme(e3,x4) & Actor(e3,x3) & v_play(e3) & of(x4,x5) & n_baseball(x5) & n_game(x4)) & in(e1,x2) & Actor(e1,x1) & v_camp(e1) & n_thing(x1))