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.

Example Input: Question: Which 1930s event that stalled the Flanley initiative last the longest? Passage:By the 1920s, SCGX was doubling annually and had emerged as the "fastest growing grain market in the world"; transacting 22 million bushels in 1928 (valued at $336 million in 2018), resulting from its location in the heart of the Corn Belt and self-imposed standards before the Grain Standards Act of 1916 including species admittance and non-mixing. However, its growth was limited by shipping rates. With the trucking industry and Interstate Highway System not yet developed, SCGX was constrained by monopolized railroad rates, primarily by the Great Northern Railway. Exhausting their bargaining power with the Interstate Commerce Commission, SCGX President Charles C. Flanley directed future lobbying efforts to unlocking barge navigation of the Missouri River. His initiative was stalled throughout the 1930s by the Great Depression and Dust Bowl. In 1938, a renewed thirteen year campaign led by Secretary William Henry Marriott finally opened commercial navigation of the Missouri River and helped establish the Missouri River Basin Project, which included development of the Gavins Point Dam. The alternate transportation succeeded in breaking the railroad's monopoly. By the 1970s, SCGX was among the largest exchanges in the world; transacting over 100 million bushels annually (valued at $1 billion as of 2018).

Example Output: a

Example Input: Question: How long did Milo's uncle serve in the U.S. Congress? Passage: November 1915, von Brincken married again to the San Francisco socialite Milo Abercrombie (1895-1977). Born in Houston, Texas, Milo was the niece of John W. Abercrombie, U.S. congressman from Alabama and acclaimed by noted portraitist Harrison Fisher as "California's greatest beauty". They had two children, Wilhelm Friedrich (1918-1980) and Maria A. (1917-2010). She divorced von Brincken in 1919 during his imprisonment and legally changed her and their two children's last name back to her maiden name, Abercrombie, so her children would not be "ashamed" of their name. Despite the divorce, von Brincken remained devoted to his former wife and she was able to remarry again, thanks to him. When the Roman Catholic Church forbade Abercrombie's intended marriage to U.S. Navy lieutenant Lyman K. Swenson, due to her divorce, von Brincken came forth and disclosed his earlier marriage to Alice Roedel. As both Roedel and von Brincken were Catholic, that marriage was sanctioned by the Church. Thus, the Church did not recognize von Brincken's later marriage to Abercrombie. Abercrombie and Swenson, who had both refused to marry unless it was sanctioned by the Catholic Church were then free to wed. Abercrombie and Swenson were married on August 11, 1920 by Father John Byrne at St Mary's Cathedral in San Francisco. At the wedding dinner that night, von Brincken's young son with Abercrombie, referred to as "John" and "Buster" in the press, was a "guest of honor" and toasted by his new stepfather and the officers of the submarine H-6 that he commanded, pledging, "the little chap's future to the uniform of blue." Swenson and Abercrombie had two children, Lyman K. Jr. ("Robert") and Cecilia. Abercrombie obtained an interlocutory decree of divorce from Swenson in May 1925, with the final decree a year later. Several months later, in October 1925, the newspapers speculated that Abercrombie would marry another naval officer, Lieutenant Commander Hugo W. Koehler, reputed to be the "wealthiest officer" in the Navy. The third generation of a wealthy St. Louis brewery family, Koehler had been a naval intelligence and U.S. State Department spy in South Russia during the Russian Revolution. Swenson had introduced Milo Abercrombie to Koehler in Honolulu. Koehler was in Panama with his ship, USS West Virginia (BB-48) when he read a newspaper account that he was engaged to marry Milo Abercrombie. Brushing it off, Koehler curtly told the press, "Some error," while Abercrombie did not take it so lightly. "I have been deeply humiliated", she told reporters, her eyes "wet with tears". "This is a most unkind blow of fate. I cannot possibly understand how this false rumor got about." Two years later, Koehler married Matilda Pell, the ex-wife of U.S. Congressman Herbert Pell (D-NY) and mother of future United States Senator Claiborne Pell (D-RI). In a bitter child visitation court battle in 1927 that went all the way to the California Court of Appeals, Abercrombie lost custody of her children with Swenson to him, after making baseless accusations that he had molested their four-year old daughter, Cecelia. The appellate court excoriated Abercrombie, "[I]in furtherance of a manifest determination to prevent him from ever seeing the children again, under any circumstances, she was instrumental in inspiring and promoting a scheme directly involving one of the children which had for its obvious purpose the ruination of respondent's character as a man, the bringing about of his complete disgrace as a naval officer, and the destruction of the love and affection which his children had theretofore manifested toward him." Swenson v. Swenson" (1929) 101 Cal.App. 440. In 1929, Lyman Swenson married Loretta B. Bruner (1897-1979). His son, Lyman K. Swenson Jr. ("Robert") (1923-2016) was also a US Naval officer.

Example Output: b

Example Input: Question: Which of Khalid's two sons outlived the other? Passage:Khalid was a member of the Shayban tribe, dominant in the region of Diyar Bakr in the northern Jazira, and third son of Yazid ibn Mazyad al-Shaybani, who served twice as Arab governor (ostikan) of Arminiya (a large province encompassing the whole of Transcaucasia). Khalid served in the same office no less than four times: in 813/814, 828–832, briefly in 841 and again under Caliph al-Wathiq (r. 842–845). In his first tenure, he showed himself conciliatory towards the native Christian population and the nakharar princes, but his second tenure was marked by the brutal suppression of several revolts by local Arab magnates, as well as the harsh treatment of the Christian population. As a result, when his re-appointment to the office was announced in 841, a rebellion broke out, forcing the Abbasid government to recall him immediately. Nevertheless, al-Wathiq assigned Arminiya to Khalid. The latter arrived in the province at the head of an army, and crushed any opposition. He died soon after at Dvin, where he was buried. He was succeeded by his son, Muhammad. His younger son Haytham ibn Khalid ruled in the family's stronghold of Shirvan, and was the first to claim the title of Shirvanshah.

Example Output:
a