#mortgage  a conditional conveyance of property as security for the repayment of a loan
  supertype:  security_interest  any interest in a property that secures the payment of an obligation
  subtype:  first_mortgage__firstmortgage  a mortgage that has priority over all mortgages and liens except those imposed by law
  subtype:  second_mortgage  a mortgage that is subordinate to a first mortgage
  subtype:  chattel_mortgage__chattelmortgage  a loan to buy some personal item; the item (or chattel) is security for the loan

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