Definition: 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: Was the population of Brussels greater than that of Moscow the year Dodon visited Istanbul? Passage:His first two international visits were to Moscow, and Brussels. Since he took office in December 2016 he has made 47 foreign visits to 19 different countries, with 20 of those visits being to Russia. In late October 2019, he visited Istanbul to attend the opening ceremony of Istanbul Airport as well as the ceremony for the Turkish Republic's 95th anniversary. In February and September 2019 respectively, he attended the Munich Security Conference in Germany and the Seventy-fourth session of the United Nations General Assembly in New York City both for the first time. During the UN visit, he referred to his attendance as "a successful one" during which he and his delegation "were able to promote the interests and aspirations of the Republic of Moldova on the international arena". He attended the 2018 FIFA World Cup opening ceremony in Moscow in June 2018 and the 2019 European Games in Minsk just over a year later. In October 2018, He attended a summit of the Organisation internationale de la Francophonie in Yerevan where he delivered a speech in the French language.


a