People walk outside of an Amsterdam tourist center on a sunny day.
People are outdoors walking.
People walk outside is the same as people walk outdoors.
exists e1 s1 x1 x2 x3 x4 x5.(on(e1,x5) & n_day(x5) & a_sunny(s1) & Theme(s1,x5) & of(e1,x2) & n_center(x2) & of(x2,x4) & n_tourist(x4) & (x2 = x3) & ne_geo_amsterdam(x3) & r_outside(e1) & Actor(e1,x1) & v_walk(e1) & n_people(x1))
exists p1 x1.(exists e1 x2 x3.((x1 = x2) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_outdoors(x2)) & n_people(x1))