A girl is on the ground with a football on her head.
A girl is outside wtih something on her head.
Football on head implies she has something on head.
exists p1 x1 x2 x4.(n_head(x4) & of(x4,x2) & n_female(x2) & n_ground(x2) & exists x3.(on(x1,x2) & with(x2,x3) & on(x3,x4) & n_football(x3)) & n_girl(x1))
exists p1 s1 x1 x2.(on(p1,x2) & n_head(x2) & of(x2,x1) & n_female(x1) & a_something(s1) & Manner(p1,s1) & exists s2 x3.((x1 = x3) & n_wtih(x3) & a_outside(s2) & Theme(s2,x3)) & n_girl(x1))