There are lots of people walking to go somewhere.
people are walking.
walking to go somewhere is more specific of walking.
exists p1 x1 e1 p2 x2 x3 x4.((x1 = x2) & of(x2,x3) & Topic(e1,p2) & Actor(e1,x4) & v_walk(e1) & exists e2 x5.(Location(e2,x5) & n_location(x5) & Actor(e2,x4) & v_go(e2)) & (x3 = x4) & n_people(x3) & n_lot(x2))
exists e1 x1.(Actor(e1,x1) & v_walk(e1) & n_people(x1))