A man is sliding down a huge sand dune on a sunny day.
There's a huge sand dune that a man is sliding down on a sunny day.
man is sliding down a huge sand dune simply means there is a huge sand dune that a man is sliding down
exists e1 s1 s2 s3 x1 x2 x3 x4.(on(e1,x4) & n_day(x4) & a_sunny(s3) & Theme(s3,x4) & a_down(s2) & Manner(e1,s2) & Theme(e1,x2) & Actor(e1,x1) & v_slide(e1) & n_dune(x2) & of(x2,x3) & n_sand(x3) & a_huge(s1) & Theme(s1,x2) & n_man(x1))
exists p1 x1 p2 s1 x2 x3.((x1 = x2) & Topic(x2,p2) & exists e1 s2 s3 x4 x5.(on(e1,x5) & n_day(x5) & a_sunny(s3) & Theme(s3,x5) & a_down(s2) & Manner(e1,s2) & Actor(e1,x4) & v_slide(e1) & n_man(x4)) & n_dune(x2) & of(x2,x3) & n_sand(x3) & a_huge(s1) & Theme(s1,x2))