In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as 'a' for Yes or 'b' for No.

[EX Q]: Question: Who has played for more teams the original striker for FC Porto at the beginning of 2003-04 season or the player that replaced him? Passage:The 200304 season began with another 10 win over Uniao de Leiria, which gave the club its 13th Supertaca. Weeks later, Porto failed to repeat this result in the 2003 UEFA Super Cup, losing 10 to Milan. The departure of striker Helder Postiga was compensated by the signing of South Africa's Benni McCarthy, whose 20 league goals helped Porto in its league title defence and crowned him the competition's top scorer. Mourinho entered the 200304 UEFA Champions League with confidence to his team. Porto finished second in its group, losing only once to Real Madrid, and advanced to a round-of-16 meeting with Manchester United. Porto scored on the 90th minute of the second leg at Old Trafford to draw 11 and advance to the quarter-finals with a 32 aggregate win. The team then overcame Lyon and Deportivo La Coruna and reached the Champions League final, where it defeated Monaco 30 to lift the club's second European Champion Clubs' Cup. A 21 loss to Benfica in the Taca de Portugal final, held 10 days before, prevented another treble-winning season.

[EX A]: b

[EX Q]: Question: How many years did the Great Depression last? Passage:Originally from New Brunswick, Harrison graduated from Nova Scotia Agricultural College in 1922, and, in 1924, from the Ontario Agricultural College with a B.Sc. in agriculture. He earned an MSc in plant pathology from Macdonald Campus of McGill University a year later. A doctoral degree he started at the University of Toronto in 1929 was abandoned due to the Great Depression. He established a herbarium of mycological specimens where he was employed for many years at the Kentville Research Station (now the Atlantic Food and Horticulture Research Centre); most of his collections are now housed at the Canadian National Mycological Herbarium. His early research concerned the fungal infestation of plants, such as that of Colletotrichum lindemuthianum on beans (Phaseolus). Working with John Frederick DeWitt Hockey, they made many contributions to the control and prevention of diseases of horticultural crops. They were among the first to use the sticky slide spore trap to estimate the densities of fungal spores.

[EX A]: b

[EX Q]: Question: Is historical negation a common form of propaganda? Passage:Historical negationism applies the techniques of research, quotation, and presentation for deception of the reader and denial of the historical record. In support of the "revised history" perspective, the negationist historian uses false documents as genuine sources, presents specious reasons to distrust genuine documents, exploits published opinions, by quoting out of historical context, manipulates statistics, and mistranslates texts in other languages. The revision techniques of historical negationism operate in the intellectual space of public debate for the advancement of a given interpretation of history and the cultural-perspective of the "revised history". As a document, the revised history is used to negate the validity of the factual, documentary record, and so reframe explanations and perceptions of the discussed historical event, in order to deceive the reader, the listener, and the viewer; therefore, historical negationism functions as a technique of propaganda. Rather than submit their works for peer review, negationist historians rewrite history and use logical fallacies to construct arguments that will obtain the desired results, a "revised history" that supports an agenda political, ideological, religious, etc. In the practice of historiography, the British historian Richard J. Evans describes the technical differences, between professional historians and negationist historians:

[EX A]:
b