A man in a black shirt is walking in front of a billboard with an animated dinosaur on it.
A person walks by a billboard.
in order to be walking in front of the person has to walk by
exists e1 s1 s2 x1 x2 x3 x4 x5.(with(e1,x5) & on(x5,x1) & n_thing(x1) & n_dinosaur(x5) & a_animated(s2) & Theme(s2,x5) & in(e1,x3) & of(x3,x4) & n_billboard(x4) & n_front(x3) & Actor(e1,x1) & v_walk(e1) & in(x1,x2) & n_shirt(x2) & a_black(s1) & Theme(s1,x2) & n_man(x1))
exists e1 x1 x2.(by(e1,x2) & n_billboard(x2) & Actor(e1,x1) & v_walk(e1) & n_person(x1))