A few people walking with buildings and mountains in the background.
people are at home sleeping
People cannot be walking outside (buildings and mountains) in the background and be at home sleeping simultaneously.
exists e1 s1 x1 x2 x3 x4 x5 x6.(n_background(x6) & a_topic(x1) & in(e1,x6) & with(e1,x3) & subset_of(x5,x3) & n_mountain(x5) & subset_of(x4,x3) & n_building(x4) & Actor(e1,x2) & v_walk(e1) & (x1 = x2) & n_people(x1) & a_few(s1) & Theme(s1,x1))
exists p1 x1.(exists x2 x3.(at(x1,x2) & n_sleeping(x2) & of(x2,x3) & n_home(x3)) & n_people(x1))