A white man with black clothing stands near the edge of a sidewalk with a bunch of people standing or walking around behind him.
A guy runs down some stairs.
The man is either standing or he is running. Guy cannot physically do both at the same time.
exists s1 s2 x1 x2 x3 x4 x5 x6 x7 x10.(n_male(x10) & n_male(x4) & n_edge(x4) & a_topic(x1) & with(x1,x2) & near(x2,x4) & of(x4,x5) & with(x5,x6) & of(x6,x7) & (exists e1 x8.(behind(e1,x4) & Actor(e1,x8) & v_stand(e1) & (x7 = x8)) | exists e2 p1 x9.(behind(e2,x10) & exists s3.(Theme(s3,x9) & a_around(s3)) & Topic(e2,p1) & Actor(e2,x9) & v_walk(e2) & (x7 = x9))) & n_people(x7) & n_bunch(x6) & n_sidewalk(x5) & n_stand(x2) & of(x2,x3) & n_clothing(x3) & a_black(s2) & Theme(s2,x2) & n_man(x1) & a_white(s1) & Theme(s1,x1))
exists e1 x1 x2.(down(e1,x2) & n_stair(x2) & Actor(e1,x1) & v_run(e1) & n_guy(x1))