二、Two States, F and W, have a dispute concerning the violation by F of a commercial treaty concluded in 1980 and entered into force on 26 June 1980. They have decided to submit their case to the International Court of Justice. F is a member of the United Nations. W is not a member of the U.N.. But W is a party to the Statute of the ICJ and participates to pay the expenses. Both of these states have made optional clause declaration in conformity with Article 36 paragraph 2 of the ICJ Statute. Please verify the competence of the ICJ to hear this dispute. (25 points)