During a small summer celebration, two adults play the flute and the tuba.
At a large gathering, there is a rock concert going on.
Usually a rock concert doesn't involve a flute and tuba.
exists e1 s1 x1 x2 x3 x4 x5 x6.(n_tuba(x4) & n_flute(x3) & during(e1,x5) & n_celebration(x5) & of(x5,x6) & n_summer(x6) & a_small(s1) & Theme(s1,x5) & Theme(e1,x2) & Actor(e1,x1) & v_play(e1) & subset_of(x4,x2) & subset_of(x3,x2) & n_adult(x1) & card_eq_2(x1))
exists p1 s1 x1 x2.(at(p1,x2) & n_gathering(x2) & a_large(s1) & Theme(s1,x2) & exists e1 s2 x3 x4 x5.((x1 = x3) & a_on(s2) & Manner(e1,s2) & Actor(e1,x5) & v_go(e1) & (x3 = x5) & n_concert(x3) & of(x3,x4) & n_rock(x4)))