[
 [
  "rel-amazon",
  "item-churn"
 ],
 [
  "rel-amazon",
  "item-ltv"
 ],
 [
  "rel-amazon",
  "user-churn"
 ],
 [
  "rel-amazon",
  "user-ltv"
 ],
 [
  "rel-avito",
  "ad-ctr"
 ],
 [
  "rel-avito",
  "user-clicks"
 ],
 [
  "rel-avito",
  "user-visits"
 ],
 [
  "rel-event",
  "user-attendance"
 ],
 [
  "rel-event",
  "user-ignore"
 ],
 [
  "rel-event",
  "user-repeat"
 ],
 [
  "rel-f1",
  "driver-dnf"
 ],
 [
  "rel-f1",
  "driver-position"
 ],
 [
  "rel-f1",
  "driver-top3"
 ],
 [
  "rel-hm",
  "item-sales"
 ],
 [
  "rel-hm",
  "user-churn"
 ],
 [
  "rel-stack",
  "post-votes"
 ],
 [
  "rel-stack",
  "user-badge"
 ],
 [
  "rel-stack",
  "user-engagement"
 ],
 [
  "rel-trial",
  "site-success"
 ],
 [
  "rel-trial",
  "study-adverse"
 ],
 [
  "rel-trial",
  "study-outcome"
 ]
]