65Therefore, regardless of whether the sign is used as part of a registered trade mark or in conjunction with the registered trade mark, the fundamental condition is that, as a consequence of that use, the sign for which registration as a trade mark is sought may serve to identify, in the minds of the relevant class of persons, the goods to which it relates as originating from a particular undertaking (see, to that effect, judgment in Colloseum Holding, C‑12/12, EU:C:2013:253, paragraph 28).
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