Old guy, looking like Jerry Garcia, playing guitar on stage while others stand behind him.
A Grateful Dead tribute band is performing.
Just because the man looks like Jerry Garcia and is playing guitar, it doesn't mean that he is from Grateful Dead tribute band.
exists e1 e2 p1 s1 s2 x1 x2 x3 x4 x5 x6.(n_male(x2) & n_person(x2) & ne_per_garcia(x2) & (x2 = x3) & ne_per_jerry(x3) & exists e3 x7.(behind(e3,x2) & Actor(e3,x7) & v_stand(e3) & -(x7 = x2) & n_person(x7)) & while(e2,p1) & on(e2,x6) & n_stage(x6) & Theme(e2,x5) & Actor(e2,x4) & v_play(e2) & n_guitar(x5) & n_guy(x4) & a_old(s2) & Theme(s2,x4) & like(e1,x2) & Actor(e1,x1) & v_look(e1) & n_guy(x1) & a_old(s1) & Theme(s1,x1))
exists e1 x1 x2 x3 x4.(Actor(e1,x1) & v_perform(e1) & n_band(x1) & of(x1,x4) & n_tribute(x4) & (x1 = x3) & ne_org_dead(x3) & (x1 = x2) & ne_org_grateful(x2))