A mounted, uniformed officer and his dog walking on a beach.
The officer and his dog are walking at the beach.
A mounted uniformed officer is an officer, and walking on the beach is the same as walking at the beach.
exists e1 s1 x1 x2 x3 x4 x5 x6.(rel(e1,x2) & subset_of(x4,x2) & on(x4,x6) & n_beach(x6) & n_walking(x4) & of(x4,x5) & n_dog(x5) & of(x4,x1) & n_male(x1) & subset_of(x3,x2) & n_officer(x3) & a_uniformed(s1) & Theme(s1,x3) & Actor(e1,x1) & v_mount(e1) & n_a(x1))
exists e1 x1 x2 x3 x4.(n_beach(x4) & n_dog(x3) & of(x3,x2) & n_male(x2) & n_officer(x2) & at(e1,x4) & Actor(e1,x1) & v_walk(e1) & subset_of(x3,x1) & subset_of(x2,x1))