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.

Question: Of the first two post-doc positions John Ellis held, which company did he work for the longest? Passage:After completing his secondary education at Highgate School, he attended King's College, Cambridge, earning his PhD in theoretical (high-energy) particle physics in 1971. After brief post-doc positions at SLAC and Caltech, he went to CERN and has held an indefinite contract there since 1978. He was awarded the Maxwell Medal and the Paul Dirac Prize by the Institute of Physics in 1982 and 2005 respectively, and is an Elected Fellow of the Royal Society of London since 1985 and of the Institute of Physics since 1991. He was awarded an Honorary Doctorate from the University of Southampton, and twice won the First Award in the Gravity Research Foundation essay competition (in 1999 and 2005). He is also Honorary Doctor at Uppsala University.

a

Question: Which president saw the establishment of the recreation area that contains the lower of the San Juan River? Passage:From there it flows west through the Navajo Nation, turning northwest near Shiprock and its namesake monolith, crossing very briefly back into southwest Colorado (within half a mile (0.8 km) of the Four Corners quadripoint) before entering southeastern Utah. West of Bluff, Utah the river slices through the Comb Ridge and enters a series of rugged winding canyons, often over in depth. The lower of the San Juan River, in a remote portion of the Glen Canyon National Recreation Area, are flooded by Lake Powell, which is formed by Glen Canyon Dam on the Colorado River. The San Juan joins the Colorado in San Juan County, Utah at a point about to the north of Navajo Mountain and northeast of Page, Arizona.

a

Question: On what continent is the cape around which Portuguese explorers discovered routess to Asia? Passage:The value of trade routes through Genoa to the Near East declined during the Age of Discovery, when Portuguese explorers discovered routes to Asia around the Cape of Good Hope. The international crises of the seventeenth century, which ended for Genoa with the 1684 bombardment by Louis XIV’s fleet, restored French influence over the republic. Consequently, the Ligurian territory was crossed by the Piedmontese and Austrian armies when these two states came into conflict with France. Austria occupied Genoa in 1746, but the Habsburg troops were driven away by a popular insurrection. Napoleon's first Italian campaign marked the end of the oligarchic Genoese state, which was transformed into the Ligurian Republic, modelled on the French Republic. After the union of Oneglia and Loano (1801), Liguria was annexed to the French Empire (1805) and divided by Napoleon into three departments: Montenotte (department), with capital Savona, Gênes, with capital Genoa and the department of the Apennines, with the capital Chiavari.


b