An adult and a child on bleachers near the water.
the people are having fun.
The people on the bleachers may just be sitting and looking at the water in reflection, they may not be having fun.
exists s1 x1 x2 x3 x4.(n_water(x4) & a_topic(s1) & subset_of(x2,s1) & on(x2,x3) & near(x3,x4) & n_bleacher(x3) & n_child(x2) & subset_of(x1,s1) & n_adult(x1))
exists e1 x1 x2.(n_people(x1) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_fun(x2))