instruction:
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.
question:
Question: How many miles would the Empire Nightingale travel when crossing the Atlantic Ocean to Yorkshire? Passage:Empire Nightingale would appear to have crossed the Atlantic Ocean from the United States independently, as she does not appear as a member of a convoy until 27 June, when she departed Middlesbrough, Yorkshire as a member of Convoy EC 31. The convoy had departed from Southend, Essex the previous day and arrived at the Clyde on 1 July. She left the convoy at Oban, Argyllshire, departing on 3 July for Baltimore, Maryland, United States, which was reached on 22 July. Empire Nightingale departed Baltimore on 10 August for Halifax, Nova Scotia, Canada, arriving five days later. Carrying a cargo of steel, she departed on 21 August with Convoy HX 146, which arrived at Liverpool, Lancashire on 6 September. She left the convoy at Loch Ewe to join Convoy WN 177, which departed from Oban on 5 September and arrived at Methil, Fife on 8 September. Empire Nightingale then joined Convoy FS 589, which departed that day and arrived at Southend on 10 September. She left the convoy at Hull, Yorkshire on 10 September.

answer:
b

question:
Question: How big is the National Park that the Yellowstone River flows northward through? Passage:The river rises in northwestern Wyoming in the Absaroka Range, on the Continental Divide in southwestern Park County. The river starts where the North Fork and the South Fork of the Yellowstone River converge. The North Fork, the larger of the two forks, flows from Younts Peak. The South Fork flows from the southern slopes of Thorofare Mountain. The Yellowstone River flows northward through Yellowstone National Park, feeding and draining Yellowstone Lake, then dropping over the Upper and Lower Yellowstone Falls at the head of the Grand Canyon of the Yellowstone within the confines of the park. After passing through the Black Canyon of the Yellowstone downstream of the Grand Canyon, the river flows northward into Montana between the northern Absaroka Range and the Gallatin Range in Paradise Valley. The river emerges from the mountains near the town of Livingston, where it turns eastward and northeastward, flowing across the northern Great Plains past the city of Billings.

answer:
b

question:
Question: Which Russia club that Laizans played for after he left CSKA Moscow had won championship? Passage:Laizans started his career with Skonto FC and moved to the Russian team CSKA Moscow in 2000. His team managed to win the UEFA Cup. After leaving CSKA Laizans kept playing in Russia for FC Torpedo Moscow, FC Rostov, FC Kuban Krasnodar and FC Shinnik Yaroslavl. In 2009, he came back to Latvia, signing for Olimps/RFS, later also playing for FK Ventspils and participating in the UEFA Europa League group stages. Laizans signed for Skonto FC at the start of 2010, but left the team soon - he joined the Russian team FC Salyut Belgorod. At the end of the season he was released, and he returned to Skonto FC once again. Playing 14 matches and scoring 2 goals, he once again left Riga, this time in July 2011 for Fakel Voronezh, playing in the Russian First League. After a season spent in Russia, Juris once again joined Skonto on 30 August 2012. Laizans played for Skonto till April 2014, afterwards ending his professional footballer's career.

answer:
a