Two boys sitting on a log that's in the water.
Two boys are spending the day at the pond.
The two boys sitting on a log does not show that they were at a pond all day.
exists e1 p1 x1 x2 x3 x4 x5.(n_water(x5) & a_topic(x1) & on(e1,x3) & in(x4,x5) & (x3 = x4) & n_log(x3) & Actor(e1,x2) & v_sit(e1) & (x1 = x2) & n_boy(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_pond(x3) & n_day(x2) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_spend(e1) & n_boy(x1) & card_eq_2(x1))