A guitar band is playing on stage.
The guitar band is at Mcdonalds.
The band can't be at Mcdonalds and on stage.
exists e1 x1 x2 x3.(on(e1,x3) & n_stage(x3) & Actor(e1,x1) & v_play(e1) & n_band(x1) & of(x1,x2) & n_guitar(x2))
exists p1 x1 x2 x3.(ne_geo_mcdonalds(x3) & n_band(x1) & of(x1,x2) & n_guitar(x2) & at(x1,x3))