In this task, you're given a question, along with a context passage which has extra information available on certain terms mentioned in it, i.e., the proper nouns in the passage. Your job is to determine whether information from more than one term is needed to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

Example input: Question: When did the operation during which the 704th dropped supplies to allied troops near Nijmegen begin? Passage: The group was occasionally diverted from strategic missions to carry out air support and interdiction missions. It supported Operation Overlord, the invasion of Normandy by attacking transportation targets, including bridges, along with airfields and strong points in France. On D Day, the squadron and the rest of the 446th Group led the first heavy bomber mission of the day. The 446th aided ground forces at Caen and Saint-Lo during July by hitting bridges, gun batteries, and enemy troops. During Operation Market Garden, the attempt to seize a bridgehead across the Rhine in the Netherlands, the 704th dropped supplies to allied troops near Nijmegen. It struck lines of communications during the Battle of the Bulge. During Operation Varsity in March 1945, it supplied ground and airborne troops near Wesel. The squadron flew its last combat mission on 25 April 1945 against Salzburg, Austria. The group had flown 273 missions and had lost 58 aircraft during the war,
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Example output: b
Example explanation: The passage describes the 704th's actions during Operation Market Garden so only information about the operation is needed.
Q: Question: What does CBS stand ford? Passage:In September 1998, alongside the launch of The WB 100+ Station Group (The WB 100+), WLAJ began operating a cable-only affiliate of The WB which was part of the national service. This was available exclusively on Comcast channel 30, had its own logo, and used the "WBL" call sign in a fictional manner. From 2002 until 2006, the internal operations (such as advertising sales) of UPN affiliate WHTV were housed at WLAJ's studios. That station then relocated to the WLNS facility after entering into a joint sales agreement with WLNS' then-owner Young Broadcasting. On January 24, 2006, The WB and UPN announced the networks would merge. The new combined network would be called The CW. The letters represented the first initial of its corporate parents: CBS (the parent company of UPN) and the Warner Bros. unit of Time Warner.

A:
b