An adult and a child playing in the water at the beach.
Two people are playing in the water.
people are adult and child
exists s1 x1 x2 x3 x4 x5.(n_beach(x5) & n_water(x4) & a_topic(s1) & subset_of(x2,s1) & at(x2,x5) & in(x2,x4) & n_playing(x2) & of(x2,x3) & n_child(x3) & subset_of(x1,s1) & n_adult(x1))
exists e1 x1 x2.(n_water(x2) & in(e1,x2) & Actor(e1,x1) & v_play(e1) & n_people(x1) & card_eq_2(x1))