A picture of the clarinet section of a band.
There are no clarinets in the band.
Since there is a clarinet section there can not be no clarinets.
exists x1 x2 x3 x4.(n_section(x2) & of(x2,x3) & n_clarinet(x3) & a_topic(x1) & of(x1,x2) & of(x2,x4) & n_band(x4) & n_picture(x1))
exists p1 x1 x2.(n_band(x2) & in(p1,x2) & -exists x3.((x1 = x3) & n_clarinet(x3)))