Instructions: 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.
Input: Question: Were the three new channels that evolved from BBC/Flextech channels all launched on the same date? Passage:Eventually the concept of the BBC/Flextech channels led the launch of UKTV in September 1997, with BBC Horizon becoming UK Horizons, BBC Style becoming UK Style and BBC Arena becoming UK Arena. Also the concept of a television version of BBC Radio 1 was reused for the UK Play channel, which launched on October 1998, but became defunct in September 2002 and the concept of BBC Catch-Up was later reused for the channel Watch, which was launched on October 2008. The concept of a dedicated BBC Sport channel never materialised, however, it has been reused when BBC Parliament was temporarily replaced by a dedicated BBC Sport channel in the 2008 Summer Olympics and the 2012 Summer Olympics, plus a range of dedicated BBC Sport channels was launched specifically for the 2012 Summer Olympics, plus there is a BBC Sport interactive channel that is available on Freeview channel 301 as a part of the BBC Red Button service.

Output:
a