A person relaxing on a sofa out on the sidewalk.
There is a sofa on the side walk.
A person relaxing on a sofa means that there is a sofa.
exists e1 s1 x1 x2 x3 x4.(n_sidewalk(x4) & a_topic(x1) & on(e1,x4) & a_out(s1) & Manner(e1,s1) & on(e1,x3) & n_sofa(x3) & Actor(e1,x2) & v_relax(e1) & (x1 = x2) & n_person(x1))
exists p1 x1 x3 x4.(n_walk(x3) & of(x3,x4) & n_side(x4) & exists x2.((x1 = x2) & on(x2,x3) & n_sofa(x2)))