A young man is playing an electric guitar.
The man is playing in a bar.
Not every young man is in a bar.
exists e1 s1 s2 x1 x2.(Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & a_electric(s2) & Theme(s2,x2) & n_man(x1) & a_young(s1) & Theme(s1,x1))
exists e1 x1 x2.(n_man(x1) & in(e1,x2) & n_bar(x2) & Actor(e1,x1) & v_play(e1))