digraph { 
  Budget
  RecurringCost
  SavingGoal
  Tag
  Transaction
  Account
  BankConnection

  BankConnection -> Transaction [label="imports into"]
  BankConnection -> Account [label="references"]

  Transaction -> Account [label="references"]
  Transaction -> Tag [label="references"]

  Budget -> Tag [label="references"]
  RecurringCost -> Tag [label="references"]
  SavingGoal -> Tag [label="references"]
}