A young man is eating a sandwich.
A woman is at the bar.
The person is either a man or a woman.
exists e1 s1 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_eat(e1) & n_sandwich(x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists p1 x1 x2.(n_bar(x2) & at(x1,x2) & n_woman(x1))