Two people on a floating device in the water on a nice day.
Two people are playing in the sand at the beach.
A person is not in the water and playing in the sand at the beach at the same time.
exists s1 s2 x1 x2 x3 x4.(n_water(x3) & a_topic(x1) & on(x1,x2) & in(x2,x3) & on(x3,x4) & n_day(x4) & a_nice(s2) & Theme(s2,x4) & n_device(x2) & a_floating(s1) & Theme(s1,x2) & n_people(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_beach(x3) & n_sand(x2) & at(e1,x3) & in(e1,x2) & Actor(e1,x1) & v_play(e1) & n_people(x1) & card_eq_2(x1))