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 of the operations HMS Penelope participated in during 1943 lasted the longest? Passage:On 9 September 1943, Penelope was part of Force Q for Operation Avalanche, the allied landings at Salerno, Italy, during which she augmented the bombardment force. Penelope left the Salerno area on 26 September with Aurora and at the beginning of October was transferred to the Levant in view of a possible attack on the island of Kos in the Dodecanese. On 7 October, with the cruiser and other ships, she sank six enemy landing craft, one ammunition ship and an armed trawler off Stampalia. While the ships were retiring through the Scarpanto Straits south of Rhodes, they were attacked by 18 Ju 87 "Stuka" dive-bombers of I Gruppe Stukageschwader 3 MEGARA. Although damaged by a bomb, Penelope was able to return to Alexandria at . On 19 November 1943 the ship moved to Haifa in connection with possible developments in the Lebanon situation. Towards the end of 1943, she was ordered to Gibraltar for Operation Stonewall, (anti-blockade-runner duties), in the Atlantic. On 27 December, the forces in this operation destroyed the German blockade-runner Alsterufer which was sunk by aircraft co-operating with Royal Navy ships. Penelope returned to Gibraltar on 30 December and took part in Operation Shingle, the amphibious assault on Anzio, Italy, providing gunfire support as part of Force X with on 22 January 1944. She also assisted in the bombardments in the Formia area during the later operations. She made eight shoots on 8 February.

Example Output: a

Example Input: Question: Which of the construction materials that St Nicholas was constructed with has a higher value on the Mohs scale? Passage:St Nicholas is constructed in flint, with some conglomerate and brick, and has limestone dressings. The roofs are tiled. Its plan consists of a nave, a chancel with a north vestry (previously a porch), and a west tower. The tower is wholly octagonal. In each face of the upper stage of the tower is a lancet, and there is another lancet on the west side at a lower level. The parapet is battlemented. The tower has a west doorway in Norman style, which has possibly been re-set from elsewhere in the church. It has scalloped capitals, and zig-zag decoration on the arch. Inside the upper part of the tower is a 17th-century dovecote lined with brick nesting boxes. On the south side, between the tower and the nave, is a brick stair turret. The nave windows have two lights with Decorated tracery. Between the windows on the south side is another Norman doorway, again with zig-zag decoration. The north and south walls of the chancel have two-light windows with Y-tracery, and three-light windows with Perpendicular tracery. The east window has five lights. The east gable is decorated with grotesque carvings, and above the east window is head-corbel and a blocked niche. The vestry has two-light north and south windows. In the north wall of the nave is an Early English doorway, with dog-tooth ornament. Around the church are stepped buttresses.

Example Output: a

Example Input: Question: How old was the general who defended Arminum when Justin was magister militum? Passage:Nothing is known of Justin's origins or early life. He appears for the first time in 528, when along with Narses he was sent to Italy with 7,000 men as reinforcements for Belisarius, who had just successfully survived siege of Rome by the Ostrogoths. At the time, he held the position of magister militum per Illyricum, a post he may have been appointed to already in 536, after the death of general Mundus. In the dissension that broke out in the Byzantine army between Belisarius and Narses, Justin sided with the latter, and accompanied him to the relief of the Gothic siege of Ariminum, defended by the general John. After the successful outcome of the operation, along with John, Justin proceeded to occupy the region of Aemilia against little Gothic resistance during the winter of 538/539. The rift in the imperial army had by this time deepened to the point that Justin and John outright refused to obey orders from Belisarius to march to the aid of the city of Mediolanum, which was being besieged by the Goths with their Frankish allies, instead waiting for relevant orders from Narses. The delay proved fatal, and the great city was captured and razed by the Franko-Gothic army.

Example Output:
b