Input: Read this: With the help of Charles Stearn, an expert on vacuum pumps, in 1878, Swan developed a method of processing that avoided the early bulb blackening. This received a British Patent in 1880.[dubious – discuss] On 18 December 1878, a lamp using a slender carbon rod was shown at a meeting of the Newcastle Chemical Society, and Swan gave a working demonstration at their meeting on 17 January 1879. It was also shown to 700 who attended a meeting of the Literary and Philosophical Society of Newcastle upon Tyne on 3 February 1879. These lamps used a carbon rod from an arc lamp rather than a slender filament. Thus they had low resistance and required very large conductors to supply the necessary current, so they were not commercially practical, although they did furnish a demonstration of the possibilities of incandescent lighting with relatively high vacuum, a carbon conductor, and platinum lead-in wires. Besides requiring too much current for a central station electric system to be practical, they had a very short lifetime. Swan turned his attention to producing a better carbon filament and the means of attaching its ends. He devised a method of treating cotton to produce 'parchmentised thread' and obtained British Patent 4933 in 1880. From this year he began installing light bulbs in homes and landmarks in England. His house was the first in the world to be lit by a lightbulb and also the first house in the world to be lit by hydroelectric power. In 1878 the home of Lord Armstrong at Cragside was also among the first houses to be lit by electricity. In the early 1880s he had started his company. In 1881, the Savoy Theatre in the City of Westminster, London was lit by Swan incandescent lightbulbs, which was the first theatre, and the first public building in the world, to be lit entirely by electricity.
Question: What was the first public building to install electric lighting?

Output: the Savoy Theatre in the City of Westminster, London


Input: Read this: In response to the early-to-mid-17th century "continental rationalism" John Locke (1632–1704) proposed in An Essay Concerning Human Understanding (1689) a very influential view wherein the only knowledge humans can have is a posteriori, i.e., based upon experience. Locke is famously attributed with holding the proposition that the human mind is a tabula rasa, a "blank tablet", in Locke's words "white paper", on which the experiences derived from sense impressions as a person's life proceeds are written. There are two sources of our ideas: sensation and reflection. In both cases, a distinction is made between simple and complex ideas. The former are unanalysable, and are broken down into primary and secondary qualities. Primary qualities are essential for the object in question to be what it is. Without specific primary qualities, an object would not be what it is. For example, an apple is an apple because of the arrangement of its atomic structure. If an apple was structured differently, it would cease to be an apple. Secondary qualities are the sensory information we can perceive from its primary qualities. For example, an apple can be perceived in various colours, sizes, and textures but it is still identified as an apple. Therefore, its primary qualities dictate what the object essentially is, while its secondary qualities define its attributes. Complex ideas combine simple ones, and divide into substances, modes, and relations. According to Locke, our knowledge of things is a perception of ideas that are in accordance or discordance with each other, which is very different from the quest for certainty of Descartes.
Question: Why are primary qualities non-essential?

Output: unanswerable


Input: Read this: The World Bank reported in February 2009 that the Arab World was far less severely affected by the credit crunch. With generally good balance of payments positions coming into the crisis or with alternative sources of financing for their large current account deficits, such as remittances, Foreign Direct Investment (FDI) or foreign aid, Arab countries were able to avoid going to the market in the latter part of 2008. This group is in the best position to absorb the economic shocks. They entered the crisis in exceptionally strong positions. This gives them a significant cushion against the global downturn. The greatest impact of the global economic crisis will come in the form of lower oil prices, which remains the single most important determinant of economic performance. Steadily declining oil prices would force them to draw down reserves and cut down on investments. Significantly lower oil prices could cause a reversal of economic performance as has been the case in past oil shocks. Initial impact will be seen on public finances and employment for foreign workers.
Question: What does the abbreviation FDI stand for?

Output: Foreign Direct Investment


Input: Read this: About 20% of pupils at Eton receive financial support, through a range of bursaries and scholarships. The recent Head Master, Tony Little, said that Eton is developing plans to allow any boy to attend the school whatever his parents' income and, in 2011, said that around 250 boys received "significant" financial help from the school. In early 2014, this figure had risen to 263 pupils receiving the equivalent of around 60% of school fee assistance, whilst a further 63 received their education free of charge. Little said that, in the short term, he wanted to ensure that around 320 pupils per year receive bursaries, and that 70 were educated free of charge, with the intention that the number of pupils receiving financial assistance would continue to increase. These comparatively new developments will run alongside long-established courses that Eton has provided for pupils from state schools, most of them in the summer holidays (July and August). Launched in 1982, the Universities Summer School is an intensive residential course open to boys and girls throughout the UK who attend state schools, are at the end of their first year in the Sixth Form, and are about to begin their final year of schooling. The Brent-Eton Summer School, started in 1994, offers 40-50 young people from the London Borough of Brent, an area of inner-city deprivation, an intensive one-week residential course, free of charge, designed to help bridge the gap between GCSE and A-level. In 2008, Eton helped found the Eton, Slough, Windsor and Hounslow Independent and State School Partnership (ISSP), with six local state schools. The ISSP's aims are "to raise pupil achievement, improve pupil self-esteem, raise pupil aspirations and improve professional practice across the schools". Eton also runs a number of choral and English language courses during the summer months.
Question: How many students attended Eton free of charge in 2014?

Output:
63