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: Consider Input: Question: Did the diesel engines used for power and cruising come from the same manufacturer? Passage:German Type IXD2 submarines were considerably larger than the original Type IXs. U-861 had a displacement of when at the surface and while submerged. The U-boat had a total length of , a pressure hull length of , a beam of , a height of , and a draught of . The submarine was powered by two MAN M 9 V 40/46 supercharged four-stroke, nine-cylinder diesel engines plus two MWM RS34.5S six-cylinder four-stroke diesel engines for cruising, producing a total of for use while surfaced, two Siemens-Schuckert 2 GU 345/34 double-acting electric motors producing a total of for use while submerged. She had two shafts and two propellers. The boat was capable of operating at depths of up to .

Output: a

Input: Consider Input: Question: When did the captain who allegedly discovered Falkland Islands died? Passage:The Falkland Islands have been claimed and occupied by several nations throughout its history, who generally used their national flags on the islands. It wasn't until 1876 that the islands were given a flag of their own, which consisted of a Blue Ensign defaced with the seal of the islands - an image of HMS Hebe (which brought many of the early British settlers to the islands, including Richard Moody, in the 1840s) in Falkland Sound, overlooked by a bullock (representing feral cattle which once roamed the islands). A new coat-of-arms for the islands was introduced on 16 October 1925, consisting of the Desire (which was captained by John Davis who is reputed to have discovered the islands in 1592) and a sea lion in a shield surrounded by the motto of the islands, Desire the Right. This coat-of-arms later replaced the image of the bullock and ship on the flag.

Output: b

Input: Consider Input: Question: How long did Aulus Plautius live after capturing the lands south of the River Trent? Passage:The general outline of the Roman conquest of Britain during the 1st century AD is recorded by historical sources; for the involvement of specific forts historians depend on archaeological excavations. This part of Britain was occupied by a tribe known as the Cornovii. In AD 4647 the Roman Army led by governor Aulus Plautius had probably occupied the lands to the south of the River Trent. Late in 47 the new governor of Britain, Ostorius Scapula, began a campaign against the tribes of the western mountains (modern Wales). Caratacus, their leader, was defeated in battle in AD 50 and fled to the Brigantes who occupied the Pennines. Their queen, Cartimandua, came to terms with the Romans and handed Caratacus over to them. Ostorius died and was replaced by Aulus Gallus who brought the Welsh borders under control but did not move further north or west. It was at about this time that the fort at Strutt's Park was built. It probably lay not far south of the border between Roman territory and that held by the Brigantes, who were now an allied or subject kingdom.
Output: b