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: Consider Input: Question: Who founded the institution where Powderly served as a professor in the Visual Communication Design Department? Passage:In 2005, Powderly became a Research and Development Fellow at Eyebeam where he began collaborating with Evan Roth. Working as the Graffiti Research Lab, Roth and Powderly developed open source tools for graffiti writers and activists, such as LED Throwies and L.A.S.E.R. Tag. Together, they also founded the Free Art and Technology Lab (F.A.T. Lab). Most recently, Powderly has won awards for his work on the EyeWriter project, including the 2009 Design of the Year in Interactive Art from the Design Museum, London, the 2010 Prix Ars Electronica, the 2010 FutureEverything Award and featured on NPR and TED. Several of Powderly' works are in the permanent collection of the Museum of Modern Art. Powderly was a professor at Hongik University in the Visual Communication Design Department in Seoul, South Korea, before moving to Fort Lauderdale, Florida, to work for the augmented reality company Magic Leap.


Output: b


Input: Consider Input: Question: Had Chic released any albums by the year Saturday Night Fever was released? Passage:For many people, disco is the genre of music most readily associated with the 1970s. First appearing in dance clubs by the middle of the decade, (with such hits as "The Hustle" by Van McCoy), artist like Donna Summer, Gloria Gaynor popularized the genre and were described in subsequent decades as the "disco divas." The movie Saturday Night Fever was released in December 1977, starring John Travolta and featuring the music of the Bee Gees and several other artists. It had the effect of setting off disco mania in the United States. the Bee Gees' soundtrack to Saturday Night Fever became the one best selling album of all time. The Bee Gees and Donna Summer became the genres mega stars. The Bee Gees had 9 number 1 singles, and 12 top 10 hits on the Billboard Hot 100 Chart. Donna Summer had 4 number 1 singles, and 8 top 5 hits, 9 top 10s during the second half of the decade. Summer would be the first female artist of the modern era, to have the number one single and number album, simultaneously on the pop charts. She would accomplish this 3 times in 8 months. She was the first female artist to have 3 number one singles, and 5 top 10, and or; 5 top 5 singles in a calendar year (1979). The other prominent acts of the genre were KC and the Sunshine Band who scored 4 number one singles, The Village People, and Chic. KC and the Sunshine Band would enter the first week of the new decade (80s) with their fifth number one single, and Donna Summer would enter the new decade with her third number one double album.


Output: b


Input: Consider Input: Question: What did Ahmad Sanjar build the wall out of? Passage:The Abbasid-era geographers report that the town was the centre of a flourishing agricultural region, with a number of dependent suburbs such as Qasr-i Ahnaf. According to al-Muqaddasi, who wrote in ca. 980, the locals were kin of the people of Gharjistan, and the town was a dependency of the rulers, or Shirs, of Gharjistan. A section of the Harbiyya district of the Round city of Baghdad was named Marwrūdiyya () after the people from this city. The town continued to flourish under the Seljuk Empire, when the Seljuk ruler Ahmad Sanjar built the city a new wall, some 5,000 paces in circumference. The town and the surrounding area suffered during the constant conflicts between the Khwarazmshahs and the Ghurids in the late 12th century, and a battle was fought there between the Ghurid ruler Ghiyath al-Din Muhammad (r. 1163–1202) and his Khwarazmian rival Sultan Shah (r. 1172–1193) in 1190. Although the town appears to have escaped the destruction of Marw al-Shahijan by the Mongols, it fell into ruin under the Timurids and was largely abandoned.



Output: a