digraph EM {
  rankdir="LR"
  Earth [ fontcolor="white"  fontsize="32" URL="https://www.wikidata.org/wiki/Q2" image="/srv/www/mediawiki/sites/wiki.bitplan.com/images/8/8d/Earth200.jpeg" ]
  Moon  [ fontcolor="white"  fontsize="32" URL="https://www.wikidata.org/wiki/Q405" image="/srv/www/mediawiki/sites/wiki.bitplan.com/images/c/c2/Moon200.jpeg" ]
  Moon -> Earth [ label="orbits" fontsize="32"]
}