A brown dog is running in the sand.
A dark colored dog is sprinting across the ground.
a dog is sprinting on the ground is a rephrasing of the dog is running on the sand
exists e1 s1 x1 x2.(n_sand(x2) & in(e1,x2) & Actor(e1,x1) & v_run(e1) & n_dog(x1) & a_brown(s1) & Theme(s1,x1))
exists e2 e1 s1 x1 x2.(n_ground(x2) & across(e2,x2) & Actor(e2,x1) & v_sprint(e2) & n_dog(x1) & Theme(e1,x1) & v_color(e1) & a_dark(s1) & Theme(s1,x1))