Here is a picture of a group of elementary kids in a dark classroom.
A picture of school children are in a dark room.
Elementary kids are school children, and a dark classroom is a dark room.
exists s1 s2 s3 x1 x2 x3 x4.(Theme(s3,x1) & a_here(s3) & of(x1,x2) & of(x2,x3) & in(x3,x4) & n_classroom(x4) & a_dark(s2) & Theme(s2,x4) & n_kid(x3) & a_elementary(s1) & Theme(s1,x3) & n_group(x2) & n_picture(x1))
exists p1 x1 x2 x3.(exists s1 x4.(in(x1,x4) & n_room(x4) & a_dark(s1) & Theme(s1,x4)) & of(x1,x2) & n_child(x2) & of(x2,x3) & n_school(x3) & n_picture(x1))