An adult and a child on bleachers near the water.
the people are driving a truck.
People are not necessarily an adult and a child. People cannot be on bleachers at the same time they are driving.
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_drive(e1) & n_truck(x2))