A girl is on her knees shoveling dirt at the beach.
a girl cleaning  dirt at the beach
A girl who is shoveling dirt does not imply she is cleaning the dirt
exists p1 x1 x2 x5.(n_beach(x5) & exists e1 x3 x4.(on(x1,x2) & at(e1,x5) & Theme(e1,x4) & Actor(e1,x3) & v_shovel(e1) & n_dirt(x4) & (x2 = x3)) & n_knee(x2) & of(x2,x1) & n_female(x1) & n_girl(x1))
exists x1 x2 x3 x4.(n_beach(x4) & a_topic(x1) & at(x1,x4) & n_dirt(x1) & of(x1,x3) & n_cleaning(x3) & of(x1,x2) & n_girl(x2))