Couple in white kissing on beach.
Naked couple having sex in the forest.
A couple cannot have sex in the forest while kissing on the beach.
exists s1 x1 x2 x3.(a_topic(x1) & in(x1,x2) & on(x2,x3) & n_beach(x3) & n_kissing(x2) & a_white(s1) & Theme(s1,x2) & n_couple(x1))
exists e1 e2 x1 x2 x3 x4.(n_forest(x4) & a_topic(x1) & in(e2,x4) & Theme(e2,x3) & Actor(e2,x2) & v_have(e2) & n_sex(x3) & (x1 = x2) & n_couple(x1) & Theme(e1,x1) & v_nake(e1))