A boy wearing a red-gray jacket is running on sand.
A boy is running on sand.
Boy wearing jacket is a type of boy.
exists e1 e2 s1 x1 x2 x3 x4.(on(e2,x4) & n_sand(x4) & Actor(e2,x1) & v_run(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_jacket(x3) & a_red-gray(s1) & Theme(s1,x3) & (x1 = x2) & n_boy(x1))
exists e1 x1 x2.(on(e1,x2) & n_sand(x2) & Actor(e1,x1) & v_run(e1) & n_boy(x1))