7 Where, by reason of a special relationship between the payer and the beneficial owner or between both of them and another person, the amount of the royalties, having regard to the use, right or information for which they are paid, exceeds the amount that would have been agreed upon by the payer and the beneficial owner in the absence of such relationship, the provisions of this Article shall apply only to the last-mentioned amount. In such case, the excess part of the payments shall remain taxable according to the laws of each Contracting State, due regard being had to the other provisions of this Convention.