A girl wearing an hat and holding an iPod sits on the side of a building.
A girls stands on near by the building
If one sits then one is not standing; if one stands, one cannot sit.
exists e2 e1 e3 x1 x2 x3 x4 x5 x6 x7.(n_side(x6) & on(e3,x6) & of(x6,x7) & n_building(x7) & Actor(e3,x1) & v_sit(e3) & Theme(e2,x5) & Actor(e2,x4) & v_hold(e2) & n_ipod(x5) & (x1 = x4) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_hat(x3) & (x1 = x2) & n_girl(x1))
exists e1 s1 s2 x1 x2.(n_building(x2) & for(e1,s2) & Theme(s2,x1) & a_near(s2) & by(e1,x2) & a_on(s1) & Manner(e1,s1) & Actor(e1,x1) & v_stand(e1) & n_girl(x1))