A rock band performs in a dark venue.
An orchestra plays outdoors at midday.
An orchestra usually plays classical music and a rock band plays rock music.
exists e1 s1 x1 x2 x3.(in(e1,x3) & n_venue(x3) & a_dark(s1) & Theme(s1,x3) & Actor(e1,x1) & v_perform(e1) & n_band(x1) & of(x1,x2) & n_rock(x2))
exists e1 x1 x2 x3.(at(e1,x3) & n_midday(x3) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & n_outdoors(x2) & n_orchestra(x1))