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.
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Question: Question: Which ship had been in service longer at the time when he was on them, the one where he still held sub-lieutenant rank or the one where David had been promoted to full lieutenant? Passage:He was assigned as a midshipman on 1 May 1929 after finishing top of his class in five subjects. In 1930 he was assigned to the battleship Marlborough, part of the Third Battle Squadron; and the following year to the battlecruiser in September 1931 on which he served with fellow midshipman, and future vice admiral, Peter Gretton. While serving on the ship, Wanklyn was promoted to acting sub-lieutenant (the equivalent of an army second lieutenant) on 1 January 1932. Soon afterwards he moved to the naval gunnery school - HMS Excellent - at Whale Island, Portsmouth to learn more about naval navigation to qualify for his second ring at the rank of lieutenant. In February 1933 he moved to HMS Dolphin and was promoted to lieutenant on 1 February 1933.

Answer: b

Question: Question: Who held O'Leary's position at Georgetown prior to him occupying it? Passage:Arthur Aloysius O'Leary was born on September 27, 1887, in Washington, D.C. His father was a worker on the Baltimore and Ohio Railroad. He was educated at Gonzaga College, and his parish was the adjacent St. Aloysius Church. He entered the Society of Jesus on August 14, 1903, and was sent to St. Andrew-on-Hudson in New York for his scholasticate. He then completed his studies at Woodstock College in Maryland, where he earned a Doctor of Philosophy. He went to Georgetown University in 1912, as a professor of philosophy, holding the position until 1916. At the same time, he was also spiritual director for the university. He was finally ordained a priest in 1919, becoming a member of the first class of priests ordained at Georgetown. He then returned to St. Andrew-on-Hudson, where he taught for several years.

Answer: a

Question: Question: How many engines were on the plane that Creighton was aboard when he performed acts that led being awarded for gallantry? Passage:He served in the RAF during the war as a navigator on bomber aircraft. He was awarded the DFC for gallantry for saving the crew of his Halifax bomber over Hamburg. During the war he met Terence Rattigan who was then a wireless operator and air gunner. They appeared together in entertainment for fellow servicemen at RAF ground stations. After the war he completed a course at RADA and subsequently joined a company at Barnstaple in Devon. Shortly afterward he formed his own travelling company, the Sage Repertory Group, with 200 given to him by his mother and was joined by three other actors from Barnstaple. An advertisement in The Stage in 1949 offering actors no salary but a share of the profits was answered by John Osborne who joined the company in Ilfracombe. His company took their plays from village to village but enjoyed little success, they presented a summer residency at the Victoria Theatre on Hayling Island but this too was short-lived. Shortly after he collaborated on two plays with Osborne, the first Personal Enemy fell foul of the censors at the time, the second was An Epitaph for George Dillon.

Answer:
b