A group of people rest on a rail in a shopping center.
A group of people are performing a water ballet.
One is either shopping or performing.
exists e1 x1 x2 x3 x4 x5.(in(e1,x4) & n_center(x4) & of(x4,x5) & n_shopping(x5) & on(e1,x3) & n_rail(x3) & Actor(e1,x1) & v_rest(e1) & of(x1,x2) & n_people(x2) & n_group(x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x3) & Actor(e1,x1) & v_perform(e1) & n_ballet(x3) & of(x3,x4) & n_water(x4) & of(x1,x2) & n_people(x2) & n_group(x1))