Three musicians wearing leather are performing on a stage, including a guy with a guitar, and two singers.
They are performing both tonight and tomorrow.
Performing on stage does not imply performing both tonight and tomorrow.
exists e1 e2 x1 x2 x3 x4 x5 x6 x7 x8.(on(e2,x4) & include(x4,x5) & subset_of(x8,x5) & n_singer(x8) & card_eq_2(x8) & subset_of(x6,x5) & with(x6,x7) & n_guitar(x7) & n_guy(x6) & n_stage(x4) & Actor(e2,x1) & v_perform(e2) & Theme(e1,x3) & Actor(e1,x2) & v_wear(e1) & n_leather(x3) & (x1 = x2) & n_musician(x1) & card_eq_3(x1))
exists e1 x1 x2 x3 x4.(n_tomorrow(x4) & n_tonight(x3) & subset_of(x4,x2) & subset_of(x3,x2) & n_thing(x1) & Theme(e1,x2) & Actor(e1,x1) & v_perform(e1))