Input: Read this: The interactions of carbonate anions with uranium(VI) cause the Pourbaix diagram to change greatly when the medium is changed from water to a carbonate containing solution. While the vast majority of carbonates are insoluble in water (students are often taught that all carbonates other than those of alkali metals are insoluble in water), uranium carbonates are often soluble in water. This is because a U(VI) cation is able to bind two terminal oxides and three or more carbonates to form anionic complexes.
Question: In what medium does the Pourbaix diagram change when carbonate anions interact with uranium(VII)?

Output: unanswerable

Input: Read this: The northwestern part of the South Asia, including Punjab, was repeatedly invaded or conquered by various foreign empires, such as those of Tamerlane, Alexander the Great and Genghis Khan. Having conquered Drangiana, Arachosia, Gedrosia and Seistan in ten days, Alexander crossed the Hindu Kush and was thus fully informed of the magnificence of the country and its riches in gold, gems and pearls. However, Alexander had to encounter and reduce the tribes on the border of Punjab before entering the luxuriant plains. Having taken a northeasterly direction, he marched against the Aspii (mountaineers), who offered vigorous resistance, but were subdued.[citation needed] Alexander then marched through Ghazni, blockaded Magassa, and then marched to Ora and Bazira. Turning to the northeast, Alexander marched to Pucela, the capital of the district now known as Pakhli. He entered Western Punjab, where the ancient city of Nysa (at the site of modern-day Mong) was situated. A coalition was formed against Alexander by the Cathians, the people of Multan, who were very skilful in war. Alexander invested many troops, eventually killing seventeen thousand Cathians in this battle, and the city of Sagala (present-day Sialkot) was razed to the ground. Alexander left Punjab in 326 B.C. and took his army to the heartlands of his empire.[citation needed]
Question: What wealth did Alexander hope to find?

Output: riches in gold, gems and pearls

Input: Read this: In 1995 the National Lottery granted money for a 4.6m sports complex, to add to Eton's existing facilities of two swimming pools, 30 cricket squares, 24 football, rugby and hockey pitches and a gym. The College paid 200,000 and contributed 4.5 hectares of land in return for exclusive use of the facilities during the daytime only. The UK Sports Council defended the deal on the grounds that the whole community would benefit, while the bursar claimed that Windsor, Slough and Eton Athletic Club was "deprived" because local people (who were not pupils at the College) did not have a world-class running track and facilities to train with. Steve Osborn, director of the Safe Neighbourhoods Unit, described the decision as "staggering" given the background of a substantial reduction in youth services by councils across the country, a matter over which, however, neither the College nor the UK Sports Council, had any control. The facility, which became the Thames Valley Athletics Centre, opened in April 1999.
Question: In what year was the National Lottery established?

Output: unanswerable

Input: Read this: Most CBC television stations, including those in the major cities, are owned and operated by the CBC itself. CBC O&O stations operate as a mostly seamless national service with few deviations from the main network schedule, although there are some regional differences from time to time. For on-air identification, most CBC stations use the CBC brand rather than their call letters, not identifying themselves specifically until sign-on or sign-off (though some, like Toronto's CBLT, do not ID themselves at all except through PSIP). All CBC O&O stations have a standard call letter naming convention, in that the first two letters are "CB" (an ITU prefix allocated not to Canada, but to Chile) and the last letter is "T". Only the third letter varies from market to market; however, that letter is typically the same as the third letter of the CBC Radio One and CBC Radio 2 stations in the same market. An exception to this rule are the CBC North stations in Yellowknife, Whitehorse and Iqaluit, whose call signs begin with "CF" due to their historic association with the CBC's Frontier Coverage Package prior to the advent of microwave and satellite broadcasting.
Question: What station does not identify itself by its call letters?

Output:
Toronto's CBLT