A man and a dog tussle over a toy in a grassy yard.
the dog is outdoors
For a man and a dog to do something in a grassy yard requires them to be outdoors. Yards are always outdoors.
exists s1 s2 x1 x2 x3 x4 x5.(a_topic(s1) & subset_of(x2,s1) & over(x2,x4) & in(x4,x5) & n_yard(x5) & a_grassy(s2) & Theme(s2,x5) & n_toy(x4) & n_tussle(x2) & of(x2,x3) & n_dog(x3) & subset_of(x1,s1) & n_man(x1))
exists p1 x1.(n_dog(x1) & exists x2.((x1 = x2) & n_outdoors(x2)))