Input: Read this: Small, cheap discoidal ceramic capacitors have existed since the 1930s, and remain in widespread use. Since the 1980s, surface mount packages for capacitors have been widely used. These packages are extremely small and lack connecting leads, allowing them to be soldered directly onto the surface of printed circuit boards. Surface mount components avoid undesirable high-frequency effects due to the leads and simplify automated assembly, although manual handling is made difficult due to their small size.
Question: Since when have surface mount packages for capacitors been commonly in use?

Output: the 1980s


Input: Read this: A converse popular image arose of British people in the Second World War: a collection of people locked in national solidarity. This image entered the historiography of the Second World War in the 1980s and 1990s, especially after the publication of Angus Calder's book The Myth of the Blitz (1991). It was evoked by both the right and left political factions in Britain during the Falklands War when it was embedded in a nostalgic narrative in which the Second World War represented aggressive British patriotism successfully defending democracy. This imagery of people in the Blitz was and is powerfully portrayed in film, radio, newspapers and magazines. At the time it was a useful propaganda tool for home and foreign consumption. Historians' critical response to this construction focused on what were seen as over-emphasised claims of righteous nationalism and national unity. In the Myth of the Blitz, Calder exposed some of the counter-evidence of anti-social and divisive behaviours. What he saw as the myth—serene national unity—became "historical truth". In particular, class division was most evident.
Question: What did Calder try to expose in his book?

Output: some of the counter-evidence of anti-social and divisive behaviours


Input: Read this: By 1847, the couple had found the palace too small for court life and their growing family, and consequently the new wing, designed by Edward Blore, was built by Thomas Cubitt, enclosing the central quadrangle. The large East Front, facing The Mall, is today the "public face" of Buckingham Palace, and contains the balcony from which the royal family acknowledge the crowds on momentous occasions and after the annual Trooping the Colour. The ballroom wing and a further suite of state rooms were also built in this period, designed by Nash's student Sir James Pennethorne.
Question: What other wing was removed during this time?

Output: unanswerable


Input: Read this: Typical American families did not fare as well, nor did those "wealthy-but-not wealthiest" families just beneath the pyramid's top. On the other hand, half of the poorest families did not have wealth declines at all during the crisis. The Federal Reserve surveyed 4,000 households between 2007 and 2009, and found that the total wealth of 63 percent of all Americans declined in that period. 77 percent of the richest families had a decrease in total wealth, while only 50 percent of those on the bottom of the pyramid suffered a decrease.
Question: How many of the richest families had a decrease in total wealth between 2007 and 2009?

Output:
77