Three people are shoveling sand.
People are shoveling sand to create a sandbox.
Shoveling sand does not imply they are trying to create a sandbox.
exists e1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_shovel(e1) & n_sand(x2) & n_people(x1) & card_eq_3(x1))
exists e1 p1 x1 x2 x3.(Topic(e1,p1) & exists e2 x4.(Theme(e2,x4) & Actor(e2,x1) & v_create(e2) & n_sandbox(x4)) & Theme(e1,x3) & Actor(e1,x2) & v_shovel(e1) & n_sand(x3) & n_people(x2) & n_people(x1))