These two men playing soccer show they are n't afraid to get a little dirty in the name of sports.
The men have grass stains on their clothing.
Just because men get dirty it does not mean they have grass stains on their clothing.  Men do not have to be just two people.
exists e1 p1 x1 x2 x3 x5.(n_name(x5) & n_thing(x1) & n_show(x1) & of(x1,x3) & n_soccer(x3) & Actor(e1,x1) & v_play(e1) & of(x1,x2) & n_man(x2) & card_eq_2(x1) & a_topic(x1) & -exists p2 s1.(Topic(s1,p2) & Actor(s1,x1) & a_afraid(s1) & exists e2 s2 x4 x6.(Theme(e2,x4) & Actor(e2,x1) & v_get(e2) & in(x4,x5) & of(x5,x6) & n_sport(x6) & n_dirty(x4) & a_little(s2) & Theme(s2,x4))) & that(x1,p1))
exists e1 x1 x2 x3 x4.(n_clothing(x4) & of(x4,x1) & n_thing(x1) & n_man(x1) & on(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_stain(x2) & of(x2,x3) & n_grass(x3))