A band consisting of three men and a woman perform in an alley with a van in the background.
A band is having an impromptu practice in front of their tour van before a concert.
Not all bands are having an impromptu practice in front of their van.
exists e2 e1 x1 x2 x3 x4 x5 x6 x7 x8.(n_background(x8) & with(e2,x7) & in(x7,x8) & n_van(x7) & in(e2,x6) & n_alley(x6) & Actor(e2,x1) & v_perform(e2) & subset_of(x5,x1) & n_woman(x5) & subset_of(x2,x1) & of(e1,x4) & n_man(x4) & card_eq_3(x4) & Actor(e1,x3) & v_consist(e1) & (x2 = x3) & n_band(x2))
exists e1 s1 x1 x2 x3 x4 x5 x6.(in(e1,x3) & of(x3,x4) & before(x4,x6) & n_concert(x6) & n_van(x4) & of(x4,x5) & n_tour(x5) & of(x4,x1) & n_thing(x1) & n_front(x3) & Theme(e1,x2) & Actor(e1,x1) & v_have(e1) & n_practice(x2) & a_impromptu(s1) & Theme(s1,x2) & n_band(x1))