Sting is singing and playing the guitar before an audience.
Sting is performing for a crowd.
In order to be performing for a crowd sting would need an audience. Singing and playing the guitar is performing. So sting is performing for a crowd.
exists e2 e1 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.(for(e1,x2) & n_crowd(x2) & Actor(e1,x1) & v_perform(e1) & n_sting(x1))