A bunch of young girls are walking in the sand.
There are footprints being left in the sand by some girls.
Foot prints are being left in the sand by some girls, so the girls must be walking in the sand.
exists e1 s1 x1 x2 x3.(n_sand(x3) & in(e1,x3) & Actor(e1,x1) & v_walk(e1) & of(x1,x2) & n_girl(x2) & a_young(s1) & Theme(s1,x2) & n_bunch(x1))
exists p1 x1 x4.(n_sand(x4) & exists e1 x2 x3 x5.((x1 = x2) & Actor(e1,x5) & n_girl(x5) & in(e1,x4) & Theme(e1,x3) & v_leave(e1) & (x2 = x3) & n_footprint(x2)))