Two people sit on sand with many buildings behind them.
Two people are sitting.
To sit on the sand means to be sitting.
exists e1 x1 x2 x3.(behind(e1,x1) & n_thing(x1) & with(e1,x3) & n_building(x3) & n_quantity(x3) & on(e1,x2) & n_sand(x2) & Actor(e1,x1) & v_sit(e1) & n_people(x1) & card_eq_2(x1))
exists e1 x1.(Actor(e1,x1) & v_sit(e1) & n_people(x1) & card_eq_2(x1))