(1) (a) In a case entered by a petition requesting the supreme court to exercise its original jurisdiction, the party filing the petition shall be designated as the petitioner, even though the party may have filed the petition in the supreme court by reason of proceedings pending in a trial court or in an administrative agency in which the party is the defendant. In all other types of cases entered, the parties shall retain their trial court or administrative agency designations as plaintiffs and defendants.
(b) When a statute or a rule of court requires that the name of a party be kept confidential, first letter of the forename and first letter of the surname of that party shall be listed only, unless another form of listing the party's name is preferable in the