You will be given a definition of a task first, then some input of the task.
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.

Question: Of the Beatles who used the Gibson J-160E, who was older? Passage:Both John Lennon and George Harrison used the Gibson J-160E, an acoustic guitar with an electric pickup at the base of the fretboard. The resonant character of the full acoustic body, combined with the electric pickup, meant that this guitar was susceptible to feedback, employed to great effect on the intro to "I Feel Fine". Lennon also used a Framus Hootenanny twelve-string acoustic, which can be seen in the movie Help! and heard on the title song and "You've Got to Hide Your Love Away". This twelve-string guitar accounted for audibly richer rhythm guitar parts on songs like these, in comparison to the six-string Gibsons. After Sgt. Pepper's Lonely Hearts Club Band, Lennon moved on to a Martin D-28 from C. F. Martin & Company (alternating between the J-160E and the D-28 for The White Album) while Harrison upgraded to a Gibson J-200 Jumbo (which Lennon used on "Two of Us" and other acoustic tracks on Let It Be).

Output:
a