A group of people walking through a park with signs.
The people are holding up announcements outdoors.
A group of people are people. Being in a park is outdoors as that is where a part is.
exists e1 x1 x2 x3 x4 x5.(a_topic(x1) & of(x1,x2) & with(e1,x5) & n_sign(x5) & through(e1,x4) & n_park(x4) & Actor(e1,x3) & v_walk(e1) & (x2 = x3) & n_people(x2) & n_group(x1))
exists e1 s1 x1 x2 x3.(n_people(x1) & a_up(s1) & Manner(e1,s1) & Theme(e1,x2) & Actor(e1,x1) & v_hold(e1) & n_outdoors(x2) & of(x2,x3) & n_announcement(x3))