A marching band in white clothing is performing in a sports stadium full of fans in red.
A rock band plays at a concert.
A marching band and a rock band are two different things.
exists e1 e2 s1 s2 x1 x2 x3 x4 x5 x6 x7.(in(e2,x3) & of(s2,x6) & in(x6,x7) & n_red(x7) & n_fan(x6) & Theme(s2,x5) & a_full(s2) & (x3 = x5) & n_stadium(x3) & of(x3,x4) & n_sport(x4) & Actor(e2,x1) & v_perform(e2) & in(x1,x2) & n_clothing(x2) & a_white(s1) & Theme(s1,x2) & n_band(x1) & Actor(e1,x1) & v_march(e1))
exists e1 x1 x2 x3.(at(e1,x3) & n_concert(x3) & Actor(e1,x1) & v_play(e1) & n_band(x1) & of(x1,x2) & n_rock(x2))