3. For the purposes of allowing relief from double taxation pursuant to this article, income shall be deemed to arise as follows :
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(a) income derived by a resident of a Contracting State which may be taxed in the other Contracting State in accordance with this Convention [other than solely by reason of citizenship in accordance with paragraph 3 of article 1 (General Scope)] shall be deemed to arise in that other State ;
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(b) income derived by a resident of a Contracting State which may not be taxed in the other Contracting State in accordance with the Convention shall be deemed to arise in the first-mentioned State. “
