Two men skateboarding in the forest.
Two men own skateboards.
Just because two men are skateboarding in the forest does not mean they own skateboards.
exists e1 x1 x2 x3.(n_forest(x3) & a_topic(x1) & in(e1,x3) & Actor(e1,x2) & v_skateboard(e1) & (x1 = x2) & n_man(x1) & card_eq_2(x1))
exists s1 s2 x1 x2.(n_skateboard(x1) & a_.(s2) & Theme(s2,x1) & a_own(s1) & Theme(s1,x1) & of(x1,x2) & n_man(x2) & card_eq_2(x1) & a_topic(x1))