Two young men one in a yellow sweatshirt and the other has no top on they are tossing a piece of green material.
Two friends play a game during their break.
Two young men playing together are not necessarily friends.  Two men may be tossing something for reasons other than to play a game.  Two men may be together at a time other than their break.
exists e1 p1 s1 s2 x1 x2 x3 x7.(n_thing(x7) & n_other(x7) & Theme(e1,x2) & Actor(e1,x1) & v_toss(e1) & of(x2,x3) & n_material(x3) & a_green(s2) & Theme(s2,x3) & n_piece(x2) & exists s3 x4 x5 x6.(-exists e2 x8.(Theme(e2,x8) & Actor(e2,x4) & v_have(e2) & on(x8,x7) & n_top(x8)) & subset_of(x7,x4) & subset_of(x5,x4) & in(x5,x6) & n_sweatshirt(x6) & a_yellow(s3) & Theme(s3,x6) & n_thing(x5) & card_eq_1(x5)) & that(x1,p1) & n_man(x1) & a_young(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(during(e1,x3) & n_break(x3) & of(x3,x1) & n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_game(x2) & n_friend(x1) & card_eq_2(x1))