Two black dogs wrestle on the green grass.
Two dogs are sitting inside.
Two dogs wrestle while two dogs are sitting.
exists e1 s1 s2 x1 x2.(n_grass(x2) & a_green(s2) & Theme(s2,x2) & on(e1,x2) & Actor(e1,x1) & v_wrestle(e1) & n_dog(x1) & a_black(s1) & Theme(s1,x1) & card_eq_2(x1))
exists e1 s1 x1.(a_inside(s1) & Manner(e1,s1) & Actor(e1,x1) & v_sit(e1) & n_dog(x1) & card_eq_2(x1))