Input: Read this: All major cities have their distinctive local department stores, which anchored the downtown shopping district until the arrival of the malls in the 1960s. Washington, for example, after 1887 had Woodward & Lothrop and Garfinckel's starting in 1905. Garfield's went bankrupt in 1990, as did Woodward & Lothrop in 1994. Baltimore had four major department stores: Hutzler's was the prestige leader, followed by Hecht's, Hochschild's and Stewart's. They all operated branches in the suburbs, but all closed in the late twentieth century. By 2015, most locally owned department stores around the country had been consolidated into larger chains, or had closed down entirely.
Question: How many major department stores didn't Baltimore have at the time?

Output: unanswerable

QUES: On 1 January 1967, Yugoslavia was the first communist country to open its borders to all foreign visitors and abolish visa requirements. In the same year Tito became active in promoting a peaceful resolution of the ArabIsraeli conflict. His plan called for Arabs to recognize the state of Israel in exchange for territories Israel gained.

When did Tito start promoting a peaceful resolution to the Arab-Israeli conflict?
What is the answer?
ANS: 1967

QUES: In a Peabody Award winning program, NPR correspondents argued that a "Giant Pool of Money" (represented by $70 trillion in worldwide fixed income investments) sought higher yields than those offered by U.S. Treasury bonds early in the decade. This pool of money had roughly doubled in size from 2000 to 2007, yet the supply of relatively safe, income generating investments had not grown as fast. Investment banks on Wall Street answered this demand with products such as the mortgage-backed security and the collateralized debt obligation that were assigned safe ratings by the credit rating agencies.
What is an example of a product Wall Street invented to answer the demand for income generating investments?

ANS: mortgage-backed security

The eligible age-range for contestants is currently fifteen to twenty-eight years old. The initial age limit was sixteen to twenty-four in the first three seasons, but the upper limit was raised to twenty-eight in season four, and the lower limit was reduced to fifteen in season ten. The contestants must be legal U.S. residents, cannot have advanced to particular stages of the competition in previous seasons (varies depending on the season, currently by the semi-final stage until season thirteen), and must not hold any current recording or talent representation contract by the semi-final stage (in previous years by the audition stage).
If it is possible to answer this question, answer it for me (else, reply "unanswerable"): When was the age limit increased to 28?
Ah, so.. season four

Question: Many major events caused Europe to change around the start of the 16th century, starting with the Fall of Constantinople in 1453, the fall of Muslim Spain and the discovery of the Americas in 1492, and Martin Luther's Protestant Reformation in 1517. In England the modern period is often dated to the start of the Tudor period with the victory of Henry VII over Richard III at the Battle of Bosworth in 1485. Early modern European history is usually seen to span from the start of the 15th century, through the Age of Reason and the Age of Enlightenment in the 17th and 18th centuries, until the beginning of the Industrial Revolution in the late 18th century.
Try to answer this question if possible: In what year did the fall of Constantinople happen?
Answer: 1453

Problem: Most videos enable users to leave comments, and these have attracted attention for the negative aspects of both their form and content. In 2006, Time praised Web 2.0 for enabling "community and collaboration on a scale never seen before", and added that YouTube "harnesses the stupidity of crowds as well as its wisdom. Some of the comments on YouTube make you weep for the future of humanity just for the spelling alone, never mind the obscenity and the naked hatred". The Guardian in 2009 described users' comments on YouTube as:
Some of the positive aspects of youtube might be that it provides what on a scale we've never seen before?
---
Answer:
community and collaboration