Definition: In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.
Input: Question: Which of the cities that the Cologne Lowland lies between is it closest to? Passage:The Cologne Lowland, also called the Cologne Bay or, less commonly, the Cologne Bight (), is a densely populated area of Germany lying between the cities of Bonn, Aachen, and Düsseldorf/Neuss. It is situated in the southwest of the state of North Rhine-Westphalia and forms the natural southern conclusion of the Lower Rhenish lowlands and the transition to the Rhenish Massif (Rheinische Schiefergebirge or "Rhenish Slate Mountains"). The Cologne Bight is surrounded by the High Fens and the Eifel to the west of the Rhine and by the uplands of Bergisches Land to the east of the Rhine. In the south and southeast the rising Rhine Massif, visible from far off by the silhouette of the Siebengebirge, surround the head of the bight at Königswinter. To the northwest the Cologne Bight opens out into the valleys of the Rhine and the Meuse, in the northeast it is bounded by the Münsterländer Kreidebecken (Münster Chalk Basin) of the Westphalian Bight.


a