A lady is in a wheelchair on the corner of a street, and a man in a white shirt is about to cross the street.
The lady is preparing to cross the street.
Just because a lady is at a street corner to cross does not imply she is preparing.
exists p1 p2 s1 s2 x1 x2 x3 x5 x7.(n_street(x7) & n_corner(x5) & Topic(s2,p2) & Actor(s2,x2) & a_about(s2) & exists e1.(Theme(e1,x7) & Actor(e1,x2) & v_cross(e1)) & in(x2,x3) & n_shirt(x3) & a_white(s1) & Theme(s1,x3) & n_man(x2) & exists x4 x6.(in(x1,x4) & on(x4,x5) & of(x5,x6) & n_street(x6) & n_wheelchair(x4)) & n_lady(x1))
exists e1 p1 x1 x2.(n_street(x2) & n_lady(x1) & Topic(e1,p1) & Actor(e1,x1) & v_prepare(e1) & exists e2.(Theme(e2,x2) & Actor(e2,x1) & v_cross(e2)))