A girl is upside-down on a trampoline and you can see her navel.
The girls is doing a flip.
a trampoline is not the same as doing a flip.
exists e1 p1 s1 x1 x2 x3.(exists e2.(Theme(e2,x3) & Actor(e2,x1) & v_see(e2)) & n_navel(x3) & of(x3,x1) & n_female(x1) & Topic(e1,p1) & Actor(e1,x1) & v_can(e1) & n_person(x1) & on(s1,x2) & n_trampoline(x2) & Theme(s1,x1) & a_upside-down(s1) & n_girl(x1))
exists e1 x1 x2.(n_girl(x1) & Theme(e1,x2) & Actor(e1,x1) & v_do(e1) & n_flip(x2))