People are swimming and floating in the ocean.
People are swimming and floating in the lake.
The ocean is much bigger than a lake.
exists e2 e1 x1 x2 x3.(n_ocean(x3) & in(e2,x3) & Actor(e2,x2) & v_float(e2) & n_people(x2) & Actor(e1,x1) & v_swim(e1) & n_people(x1))
exists e2 e1 x1 x2 x3.(n_lake(x3) & in(e2,x3) & Actor(e2,x2) & v_float(e2) & n_people(x2) & Actor(e1,x1) & v_swim(e1) & n_people(x1))