104The answer to the fifth question must therefore be that Article 3(1)(c) of the Directive must be interpreted as meaning that a mark consisting of a word composed of elements, each of which is descriptive of characteristics of the goods or services in respect of which registration is sought, is itself descriptive of the characteristics of those goods or services for the purposes of that provision, unless there is a perceptible difference between the word and the mere sum of its parts: that assumes either that because of the unusual nature of the combination in relation to the goods or services the word creates an impression which is sufficiently far removed from that produced by the mere combination of meanings lent by the elements of which it is composed, with the result that the word is more than the sum of its parts, or that the word has become part of everyday language and has acquired its own meaning, with the result that it is now independent of its components. In the latter case, it is necessary to ascertain whether a word which has acquired its own meaning is not itself descriptive for the purposes of the same provision.For the purposes of determining whether Article 3(l1(c) of the Directive applies to such a mark, it is irrelevant whether or not there are synonyms capable of designating the same characteristics of the goods or services mentioned in the application for registration or that the characteristics of the goods or services which may be the subject of the description are commercially essential or merely ancillary.