A celebration of Christmas lights behind a chain link fence.
It's a Christmas celebration.
It is a Christmas celebration because Christmas lights are a symbol of celebrating Christmas.
exists x1 x2 x3 x4 x5 x6.(a_topic(x1) & Time(x1,x6) & n_fence(x6) & behind(x1,x4) & n_link(x4) & of(x4,x5) & n_chain(x5) & of(x1,x2) & n_light(x2) & (x2 = x3) & ne_geo_christmas(x3) & n_celebration(x1))
exists p1 x1.(n_thing(x1) & exists x2 x3.((x1 = x2) & n_celebration(x2) & (x2 = x3) & ne_tim_christmas(x3)))