Sting is singing and playing the guitar before an audience.
Sting is playing at the superbowl.
Sting singing and playing the guitar before an audience does not imply superbowl.
exists e1 e2 x1 x2 x3 x4 x5 x6.(n_guitar(x5) & n_guitar(x2) & Theme(e2,x5) & Actor(e2,x4) & v_play(e2) & before(x5,x6) & n_audience(x6) & n_sting(x4) & Theme(e1,x2) & Actor(e1,x1) & v_sing(e1) & before(x2,x3) & n_audience(x3) & n_sting(x1))
exists e1 x1 x2.(n_superbowl(x2) & at(e1,x2) & Actor(e1,x1) & v_play(e1) & n_sting(x1))