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: When was the station that was closed to pedestrians built? Passage:The Ritz Carlton, Westin Peachtree Plaza, Georgia-Pacific Building, SunTrust Plaza (where more than 60 people had to be relocated out of their offices), Equitable Building, and Georgia State University also had windows blown out (300 at Equitable alone), as did The Tabernacle (a former church with stained glass that is now a concert venue). The windows of the Westin continued to fall for days after the tornado, forcing police to keep several city blocks and MARTA's Peachtree Center station closed to pedestrians. The Georgia World Congress Center also sustained flooding while hosting a JROTC event and the Hinman Dental Meeting; Fox Sports Net took footage of a staircase in the new section of the complex that looked like a fountain with water cascading down it. The annual Atlanta Home Show and all other events were cancelled for the weekend in the GWCC complex, as was the Atlanta St. Patrick's Day Parade scheduled for the next day. WRAS FM at Georgia State University was off the air for two days, though it was not stated whether its studio or tower sustained damage, or if this was due to security or safety concerns, or power outages. The historic Rialto Theatre at GSU also sustained roof damage, which caused water damage inside.

Output:
b