Input: Copper
There are 29 isotopes of copper. 63Cu and 65Cu are stable, with 63Cu comprising approximately 69% of naturally occurring copper; they both have a spin of 32. The other isotopes are radioactive, with the most stable being 67Cu with a half-life of 61.83 hours. Seven metastable isotopes have been characterized, with 68mCu the longest-lived with a half-life of 3.8 minutes. Isotopes with a mass number above 64 decay by , whereas those with a mass number below 64 decay by +. 64Cu, which has a half-life of 12.7 hours, decays both ways.

How many isotopes are there of copper?
Output: 29

Input: Article: In the 2005 OECD report for Greece, it was clearly stated that "the impact of new accounting rules on the fiscal figures for the years 1997 to 1999 ranged from 0.7 to 1 percentage point of GDP; this retroactive change of methodology was responsible for the revised deficit exceeding 3% in 1999, the year of [Greece's] EMU membership qualification". The above led the Greek minister of finance to clarify that the 1999 budget deficit was below the prescribed 3% limit when calculated with the ESA79 methodology in force at the time of Greece's application, and thus the criteria had been met.

Now answer this question: What did the Greek minister of finance clarify the 1999 budget was below when calculated with the ESA79 methodology?

Output: the prescribed 3% limit

Article: Major projects include the current construction of a new campus for Gateway Community College downtown, and also a 32-story, 500-unit apartment/retail building called 360 State Street. The 360 State Street project is now occupied and is the largest residential building in Connecticut. A new boathouse and dock is planned for New Haven Harbor, and the linear park Farmington Canal Trail is set to extend into downtown New Haven within the coming year. Additionally, foundation and ramp work to widen I-95 to create a new harbor crossing for New Haven, with an extradosed bridge to replace the 1950s-era Q Bridge, has begun. The city still hopes to redevelop the site of the New Haven Coliseum, which was demolished in 2007.

Question: In terms of infrastructure, what is being develop in the downtown area?
Ans: linear park Farmington Canal Trail

Here is a question about this article: With the initial investment of 4,200, the new trial force of the Thames River Police began with about 50 men charged with policing 33,000 workers in the river trades, of whom Colquhoun claimed 11,000 were known criminals and "on the game." The force was a success after its first year, and his men had "established their worth by saving 122,000 worth of cargo and by the rescuing of several lives." Word of this success spread quickly, and the government passed the Marine Police Bill on 28 July 1800, transforming it from a private to public police agency; now the oldest police force in the world. Colquhoun published a book on the experiment, The Commerce and Policing of the River Thames. It found receptive audiences far outside London, and inspired similar forces in other cities, notably, New York City, Dublin, and Sydney.
What is the answer to this question: How many dock workers were the Thames River Police policing?
****
So... 33,000

The problem: Answer a question about this article:
The American people are mostly multi-ethnic descendants of various culturally distinct immigrant groups, many of which have now developed nations. Some consider themselves multiracial, while acknowledging race as a social construct. Creolization, assimilation and integration have been continuing processes. The African-American Civil Rights Movement (19551968) and other social movements since the mid-twentieth century worked to achieve social justice and equal enforcement of civil rights under the constitution for all ethnicities. In the 2000s, less than 5% of the population identified as multiracial. In many instances, mixed racial ancestry is so far back in an individual's family history (for instance, before the Civil War or earlier), that it does not affect more recent ethnic and cultural identification.
What is race sometimes seen as?
****
The answer: a social construct

The problem: Answer a question about this article:
In 530 BC Cyrus the Great, King of the Persian Achaemenid Empire crossed the Hindu-Kush mountains to seek tribute from the tribes of Kamboja, Gandhara and the trans-India region (modern Afghanistan and Pakistan). By 520 BC, during the reign of Darius I of Persia, much of the northwestern subcontinent (present-day eastern Afghanistan and Pakistan) came under the rule of the Persian Achaemenid Empire, as part of the far easternmost territories. The area remained under Persian control for two centuries. During this time India supplied mercenaries to the Persian army then fighting in Greece.
What king ruled Persia in 520 BC?
****
The answer:
Darius I of Persia