A young man is eating a sandwich.
A man is eating.
both subjects are eating
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 e1 x1.(Actor(e1,x1) & v_eat(e1) & n_man(x1))