There are many people standing on a sidewalk as a man walks down the hill in front of them.
Many people are standing on a sidewalk.
Standing on a sidewalk is the same as standing on the sidewalk.
exists p1 x1 x6.(n_thing(x6) & n_hill(x6) & exists e1 p2 x2 x3 x4.((x1 = x2) & exists e2 s1 x5 x7.(a_down(s1) & Manner(e2,s1) & Theme(e2,x6) & Actor(e2,x5) & v_walk(e2) & in(x6,x7) & of(x7,x6) & n_front(x7) & n_man(x5)) & as(e1,p2) & on(e1,x4) & n_sidewalk(x4) & Actor(e1,x3) & v_stand(e1) & (x2 = x3) & n_people(x2) & n_quantity(x2)))
exists e1 x1 x2.(on(e1,x2) & n_sidewalk(x2) & Actor(e1,x1) & v_stand(e1) & n_people(x1) & n_quantity(x1))