An older man with white hair and beard reading a map as he's walking through an unfamiliar city.
The man is visiting San Francisco.
Just because the man in visiting an unknown city does not mean that the city is San Francisco.
exists e1 p1 s1 s2 x1 x2 x3 x4 x5 x6.(a_topic(x1) & exists e2 s3 x7.(through(e2,x7) & n_city(x7) & a_unfamiliar(s3) & Theme(s3,x7) & Actor(e2,x1) & v_walk(e2)) & n_male(x1) & as(e1,p1) & Theme(e1,x6) & Actor(e1,x5) & v_read(e1) & n_map(x6) & (x1 = x5) & with(x1,x2) & n_beard(x4) & n_hair(x3) & subset_of(x4,x2) & subset_of(x3,x2) & a_white(s2) & Theme(s2,x2) & n_man(x1) & r_more(s1) & a_older(s1) & Theme(s1,x1))
exists e1 x1 x2 x3.(ne_geo_francisco(x2) & (x2 = x3) & ne_geo_san(x3) & n_man(x1) & Theme(e1,x2) & Actor(e1,x1) & v_visit(e1))