A band playing at an event in a park.
Musicians are making music.
A band is made up of musicians who play music
exists x1 x2 x3 x4.(a_topic(x1) & in(x1,x4) & n_park(x4) & at(x1,x3) & n_event(x3) & n_playing(x1) & of(x1,x2) & n_band(x2))
exists e1 x1 x2.(ne_nam_musicians(x1) & Theme(e1,x2) & Actor(e1,x1) & v_make(e1) & n_music(x2))