Except on the grounds referred to in section G 1, subsection 4, a request for the registration of the appellation of a political grouping for an election to the European Parliament shall be refused if the appellation is identical or largely similar to an appellation of another political grouping which has previously been registered for an election to the House of Representatives or to an appellation for which a request for registration was previously received for that election, so that there is a risk of confusion.