A man is playing his guitar at Joe's Cafe.
A man plays his guitar at a restaurant for dinner and tips.
There are many restaurant besides Joe's and other reasons to play the guitar.
exists e1 x1 x2 x3 x4.(ne_org_cafe(x4) & of(x4,x3) & ne_org_joe(x3) & at(e1,x4) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & of(x2,x1) & n_male(x1) & n_man(x1))
exists e1 x1 x2 x3 x4 x5 x6.(at(e1,x3) & for(x3,x4) & subset_of(x6,x4) & n_tip(x6) & subset_of(x5,x4) & n_dinner(x5) & n_restaurant(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_guitar(x2) & of(x2,x1) & n_male(x1) & n_man(x1))