30It should be observed, however, that a provision such as the one at issue in the main proceedings, which allows for the renewal of fixed-term contracts to replace other employees who are momentarily unable to perform their tasks, is not per se contrary to the FTW Framework Agreement. The temporary replacement of another employee in order to satisfy, in essence, the employer’s temporary staffing requirements may, in principle, constitute an objective reason under clause 5(1)(a) of the FTW Framework Agreement (see, to that effect, Angelidaki and Others, paragraph 102).