Two man are swimming on a shore with a tree covered hill in the background.
Two people are having dinner at the table.
The subject cannot be swimming and having dinner simultaneously.
exists e1 e2 x1 x2 x3 x4 x5.(n_background(x5) & with(e1,x3) & in(x3,x5) & n_hill(x3) & Theme(e2,x3) & v_cover(e2) & of(x3,x4) & n_tree(x4) & on(e1,x2) & n_shore(x2) & Actor(e1,x1) & v_swim(e1) & n_man(x1) & card_eq_2(x1))
exists e1 x1 x2 x3.(n_table(x3) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & at(x2,x3) & n_dinner(x2) & n_people(x1) & card_eq_2(x1))