A young couple enjoy beer and conversation at an outdoor table.
A couple enjoy steaks and wine.
The couple can only enjoy beer and conversation or steaks and wine, not both.
exists e1 s1 s2 x1 x2 x3 x4 x5.(at(e1,x5) & n_table(x5) & a_outdoor(s2) & Theme(s2,x5) & Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_conversation(x4) & n_beer(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_couple(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(Theme(e1,x2) & Actor(e1,x1) & v_enjoy(e1) & n_wine(x4) & n_steak(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_couple(x1))