c. a reply by the Claimant; and

d. a rejoinder by the Respondent.

(2) If the request was made jointly, each party shall, within the same time limit determined by the Tribunal, file its memorial. However, the parties may instead agree that one of them shall, for the purposes of paragraph (1) of this Article, be considered as the Claimant.

(3) A memorial shall contain: a statement of the relevant facts; a statement of law; and the submissions. A counter-memorial, reply or rejoinder shall contain an admission or denial of the facts stated in the last previous pleading; any additional facts, if necessary; observations concerning the statement of law in the last previous pleading; a statement of law in answer thereto; and the submissions.