In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Example Input: Question: Has the maple leaf been used on any other coat of arms or country flags besides in Canada? Passage:The maple leaf has been used as a Canadian emblem since the 18th century. It was first used as a national symbol in 1868 when it appeared on the coat of arms of both Ontario and Quebec. In 1867, Alexander Muir composed the patriotic song "The Maple Leaf Forever", which became an unofficial anthem in English-speaking Canada. The maple leaf was later added to the Canadian coat of arms in 1921. From 1876 until 1901, the leaf appeared on all Canadian coins and remained on the penny after 1901. The use of the maple leaf by the Royal Canadian Regiment as a regimental symbol extended back to 1860. During the First World War and Second World War, badges of the Canadian Forces were often based on a maple leaf design. The maple leaf would eventually adorn the tombstones of Canadian military graves.

Example Output: b

Example Input: Question: What was the population of the Principality of Samtskhe while Sargis II Jaqeli was the ruler? Passage:Sargis II Jaqeli () (1271 – 1334) was a Georgian prince (mtavari) and ruler of Principality of Samtskhe from 1306 to 1334. He was a son of Prince Beka I Jaqeli. During his father's reign Sargis participated in many campaigns. In 1290s Azat Mousa, leader of the Anatolian Turkoman tribes, attacked Samtskhe. Beka Jaqeli appointed Sargis as a commander of army and ordered him to stop Turks near village Vashlovani. Around 1303, Sargis defeated Turkoman tribes and expelled them from Meskhetian lands. In 1306, after his father's death, Sargis ascended the Atabeg's throne. He was made Amirspasalar by his nephew, King George V "the Brilliant". After Sargis II's death, his son Qvarqvare became a new Prince of Meskheti, also the vassal of Georgian kingdom.

Example Output: a

Example Input: Question: How long had the Franklin Institute been in Philadelphia? Passage:Douglas H. Elliott was born in Philadelphia, Pennsylvania. He attended the schools of Philadelphia and graduated from The Haverford School in 1938. He attended the University of Virginia at Charlottesville, from 1938 to 1940. During the Second World War, he served in the United States Navy from 1941 until discharged as a chief petty officer in 1945. He worked for insurance companies from 1945 to 1952. He served as director of public relations of the Franklin Institute in Philadelphia from 1950 to 1952. He served as vice president of Wilson College in Chambersburg, Pennsylvania, from 1952 to 1960. Elliott was elected to the Pennsylvania State Senate in 1956, and served until he was elected to the Eighty-sixth Congress to fill the vacancy caused by the death of Richard Simpson and served from April 26, 1960, until his suicide by carbon monoxide poisoning in Horse Valley, Pennsylvania, on June 19, 1960. Interment in Falling Spring Presbyterian Church Cemetery in Chambersburg, Pennsylvania.

Example Output:
b