A boy is being covered in sand at the beach.
The boy is at the beach.
Covered in sand is done at the beach most of the time.
exists e1 x1 x2 x3.(n_beach(x3) & in(e1,x2) & at(x2,x3) & n_sand(x2) & Theme(e1,x1) & v_cover(e1) & n_boy(x1))
exists p1 x1 x2.(n_beach(x2) & n_boy(x1) & at(x1,x2))