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.

Ex Input:
Question: How old was Pleistarchus's brother when he sent Pleistarchus to make headway against Ptolemy? Passage:Pleistarchus or Plistarch (; lived 4th century BC) was son of Antipater and brother of Cassander, king of Macedonia. He is first mentioned in the year 313 BC, when he was left by his brother in the command of Chalcis, to make headway against Ptolemy, the general of Antigonus, when Cassander himself was recalled to the defence of Macedonia. Again, in 302 BC, when the general coalition was formed against Antigonus, Pleistarchus was sent forward by his brother, with an army 12,000 foot and 500 horse, to join Lysimachus in Asia. As the Hellespont and entrance of the Euxine was occupied by Demetrius, he endeavoured to transport his troops from Odessus direct to Heraclea, but lost by far the greater part on the passage, some having been captured by the enemy's ships, while others perished in a storm, in which Pleistarchus himself narrowly escaped shipwreck. Notwithstanding this misfortune, he seems to have rendered efficient service to the confederates, for which he was rewarded after the battle of Ipsus (301 BC) by obtaining the province of Cilicia, as an independent government. This, however, he did not long retain, being expelled from it in the following year by Demetrius, almost without opposition. Afterwards he is recorded in inscriptions as the ruler of Caria; he was apparently given this province after the battle of Ipsus, and ruled there for at least seven years. Pausanias mentions him as having been defeated by the Athenians in an action in which he commanded the cavalry and auxiliaries of Cassander; but the period at which this event took place is uncertain. It is perhaps to him that the medical writer, Diocles of Carystus, addressed his work, which is cited more than once by Athenaeus, as .

Ex Output:
b

Ex Input:
Question: What position did Yosuke Saito hold during the development of Cross Gate? Passage:Dragon Quest X was developed by Square Enix and Armor Project, a company founded by series creator Yuji Horii. This was the first modern Dragon Quest title to be developed by Armor Project and Square Enix, as earlier mainline entries had been handled by external companies. The CGI opening was handled by Square Enix's CGI department Visual Works. The game was directed by Jin Fujisawa, who also directed Dragon Quest IX. The scenario was written by Fujisawa, with later scenario support by Atsushi Narita. Horii served as game designer and general project director. Series art designer Akira Toriyama returned to design the characters, while the music was composed by series veteran Koichi Sugiyama. One of the chief planners was Naoki Yoshida, who had worked on earlier Dragon Quest spin-offs, and was later assigned as the director of Final Fantasy XIV and its reboot . A newcomer to the series was producer Yosuke Saito, formerly a staff member at Cavia who worked as a programmer on the Drakengard series before producing its spin-off game Nier. After Cavia closed in 2010, Saito formed his own company Orca, which was chosen by Square Enix to support the development of Dragon Quest X. Due to this, work had to be scrapped on a PlayStation Vita version of Nier. Saito had earlier worked with MMORPGs when he was involved with the development of Cross Gate (2001). A second newcomer was Chikara Saito who, after working on Dragon Quest X during its development alongside Cross Treasures, would take over as the game's director in 2013.

Ex Output:
b

Ex Input:
Question: How many members strong was the Prague Philharmonia when Walker conducted it in 2005? Passage:In 2000/01 Walker conducted the English Touring Opera's production of the Magic Flute, and on 27 November 2004 the Chelsea Opera Group (UK) in Glinka's A Life for the Tsar at the Queen Elizabeth Hall. In November 2005 he conducted the Prague Philharmonia, and in the winter season 2005/6 Walker conducted three performances of The Nutcracker for the Royal Opera House, Covent Garden, and Swan Lake in 2009 for the Finnish National Ballet. On 4 July 2010 he conducted the BBC Philharmonic Orchestra, and in 2011 a concert with the Royal Philharmonic Orchestra. He appeared at the Oundle International Festival in 2011 where he conducted the premiere of Prophet and Loss by Julian Grant. In October 2011 he conducted a Gershwin Gala with the Russian Philharmonic. In 2012 Walker conducted the English Chamber Orchestra. and a production of the Nutcracker at the Norwegian National Opera and Ballet. On 19 April 2015 he conducted the New Russia State Symphony Orchestra. In 2017 he was awarded the Elgar Medal by the Elgar Society for championing the composer's music internationally in countries including Belarus, Russia, Poland, Turkey and Romania.

Ex Output:
b