You will be given a definition of a task first, then some input of the task.
In this task, you are given a sentence in English and your task is to translate it into Spanish. In translation, keep the numbers and capitalization (capitalize only the first word of each sentence and name).

We could not agree with a proposal like this, which challenged the authority of the European Parliament.
Output:
No podíamos estar de acuerdo con semejante propuesta, que ponía en entredicho los poderes del Parlamento Europeo.