You will be given a definition of a task first, then some input of the task.
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: How many years did it take Philippe Leclerc de Hauteclocque
to graduate from the Ecole speciale militaire de Saint-Cyr in 1924? Passage:The son of an aristocratic family, de Hauteclocque graduated from the Ecole speciale militaire de Saint-Cyr, the French military academy, in 1924. After service with the French Occupation of the Ruhr and in Morocco, he returned to Saint-Cyr as an instructor. He was awarded the croix de guerre des theatres d'operations exterieures for leading goumiers in an attack on caves and ravines on Bou Amdoun on 11 August 1933. During the Second World War he fought in the Battle of France. He then became one of the first to make his way to Britain to fight with the Free French under General Charles de Gaulle, adopting the nom de guerre of Leclerc so that his wife and children would not be put at risk if his name appeared in the papers. He was sent to French Equatorial Africa, where he rallied local leaders to the Free French cause, and led a force against Gabon, whose leaders supported Vichy France. From Chad he led raids into Italian-controlled Libya. After his forces captured Kufra, he had his men swear an oath known today as the Serment de Koufra, in which they pledged to fight on until their flag flew over the Strasbourg Cathedral.

Output:
b