People surrounding an American Parkinson booth.
The people are swimming.
People are either surrounding a booth or swimming.
exists e1 s1 x1 x2 x3 x4.(a_topic(x1) & Theme(e1,x3) & Actor(e1,x2) & v_surround(e1) & n_booth(x3) & (x3 = x4) & ne_org_parkinson(x4) & a_american(s1) & Theme(s1,x3) & (x1 = x2) & n_people(x1))
exists e1 x1.(n_people(x1) & Actor(e1,x1) & v_swim(e1))