Fluffy white dog running on pebbles along the shore.
The dog is riding in the bed of a truck.
The dog cannot be running and riding in the truck simultaneously
exists e1 s1 x1 x2 x3 x4 x5.(n_shore(x5) & a_topic(x1) & on(e1,x4) & along(x4,x5) & n_pebble(x4) & Actor(e1,x3) & v_run(e1) & (x1 = x3) & n_dog(x1) & a_white(s1) & Theme(s1,x1) & (x1 = x2) & ne_nam_fluffy(x2))
exists e1 x1 x2 x3.(n_bed(x2) & n_dog(x1) & in(e1,x2) & of(x2,x3) & n_truck(x3) & Actor(e1,x1) & v_ride(e1))