A backpacker and a dog on a snow covered landscape at nightfall.
A backpacker with his dog are in snow at night.
Being in snow at night requires a landscape
exists e1 s1 x1 x2 x3 x4 x5 x6.(a_topic(s1) & subset_of(x2,s1) & on(x2,x3) & at(e1,x6) & n_nightfall(x6) & Time(e1,x5) & n_landscape(x5) & Theme(e1,x4) & v_cover(e1) & (x3 = x4) & n_snow(x3) & n_dog(x2) & subset_of(x1,s1) & n_backpacker(x1))
exists p1 x1 x2 x3.(at(p1,x3) & n_night(x3) & exists x4.(in(x1,x4) & n_snow(x4)) & with(x1,x2) & n_dog(x2) & of(x2,x1) & n_male(x1) & n_backpacker(x1))