A man pick a stone at the sea
The woman enjoyed the beauty of the ocean.
The subject can either be a man or a woman, not both.
exists e1 x1 x2 x3.(n_sea(x3) & at(e1,x3) & Theme(e1,x2) & Actor(e1,x1) & v_pick(e1) & n_stone(x2) & n_man(x1))
exists e1 x1 x2 x3.(n_ocean(x3) & n_beauty(x2) & n_woman(x1) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & of(x2,x3))