You will be given a definition of a task first, then some input of the task.
The goal of this task is to translate questions in Catalan into English. The requirements of the translation is that: the text must be equivalent in meaning, the text must not be ambiguous, and the text must be written as a question

Per on flueix el Rin Mitjà entre Bingen i Bonn?
Output:
What flows between Bingen and Bonn?