num_relations = 8;
relation_pairs = [
  (2886, 3286),
  (2886, 112058),
  (2886, 88488),
  (2886, 125616),
  (907, 132),
  (907, 113591),
  (907, 1817),
  (907, 2512)
];
desired_distances = [
  0.01,
  0.01,
  5,
  5,
  0.01,
  0.01,
  5,
  5
];