Definition: 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: Question: Which of these did she work for longer? Passage:During her early career Burrage traveled extensively in Europe, and also visited the Armory Show. She returned to the United States at the outbreak of World War II, moving to Kennebunkport with her sister Madeline, known as "Bob", in 1917, and remaining there until 1947, when they moved to Wiscasset. Her style continued to develop during this time, shifting from the Impressionism of her youth to an abstraction informed by the work of Jackson Pollock; later in life she created collages from mica. Some of her work is influenced by cartography. Active as a preservationist as well as an artist, she served as a director of the National Trust for Historic Preservation, and in 1954 helped to found the Lincoln County Historical Association. She was also involved in the founding of the Maine Art Gallery. Upon her death Burrage was buried with Madeline, who predeceased her, at Evergreen Cemetery in Portland.

Output:
a