Federal law and treaties, so long as they are in accordance with the Constitution, preempt conflicting state and territorial laws in the 50 U.S. states and in the territories. However, the scope of federal preemption is limited because the scope of federal power is not universal. In the dual-sovereign system of American federalism (actually tripartite because of the presence of Indian reservations), states are the plenary sovereigns, each with their own constitution, while the federal sovereign possesses only the limited supreme authority enumerated in the Constitution. Indeed, states may grant their citizens broader rights than the federal Constitution as long as they do not infringe on any federal constitutional rights. Thus, most U.S. law (especially the actual "living law" of contract, tort, property, criminal, and family law experienced by the majority of citizens on a day-to-day basis) consists primarily of state law, which can and does vary greatly from one state to the next.
What is day-to-day, operational law considered?
"living law"

Input: Tuberculosis
Using histological stains on expectorated samples from phlegm (also called "sputum"), scientists can identify MTB under a microscope. Since MTB retains certain stains even after being treated with acidic solution, it is classified as an acid-fast bacillus. The most common acid-fast staining techniques are the ZiehlNeelsen stain and the Kinyoun stain, which dye acid-fast bacilli a bright red that stands out against a blue background. Auramine-rhodamine staining and fluorescence microscopy are also used.

One of the two standard acid-fast staining techniques is the Kinyoun stain; what's the other?
Output: ZiehlNeelsen stain

Input: Article: Construction is currently underway on the Miami Intermodal Center and Miami Central Station, a massive transportation hub servicing Metrorail, Amtrak, Tri-Rail, Metrobus, Greyhound Lines, taxis, rental cars, MIA Mover, private automobiles, bicycles and pedestrians adjacent to Miami International Airport. Completion of the Miami Intermodal Center is expected to be completed by winter 2011, and will serve over 150,000 commuters and travelers in the Miami area. Phase I of Miami Central Station is scheduled to begin service in the spring of 2012, and Phase II in 2013.

Now answer this question: Approximately how many people were intended to use Miami Intermodal Center?

Output: 150,000

Article: While the use of iron started to become more widespread around 1200 BC, mainly because of interruptions in the trade routes for tin, the metal is much softer than bronze. However, very small amounts of steel, (an alloy of iron and around 1% carbon), was always a byproduct of the bloomery process. The ability to modify the hardness of steel by heat treatment had been known since 1100 BC, and the rare material was valued for the manufacture of tools and weapons. Because the ancients could not produce temperatures high enough to melt iron fully, the production of steel in decent quantities did not occur until the introduction of blister steel during the Middle Ages. This method introduced carbon by heating wrought iron in charcoal for long periods of time, but the penetration of carbon was not very deep, so the alloy was not homogeneous. In 1740, Benjamin Huntsman began melting blister steel in a crucible to even out the carbon content, creating the first process for the mass production of tool steel. Huntsman's process was used for manufacturing tool steel until the early 1900s.

Question: When did iron start to become melted by people?
Ans: Middle Ages

Here is a question about this article: The Appalachian Mountains are the coolest area of the state, with temperatures averaging in the low 40s and upper 30s F (63 C) for highs in the winter and falling into the low 20s F (5 C) or lower on winter nights. Relatively cool summers have temperatures rarely rising above 80 F (27 C). Average snowfall in many areas exceeds 30 in (76 cm) per year, and can be heavy at the higher elevations; for example, during the Blizzard of 1993 more than 60 in (152 cm) of snow fell on Mount Mitchell over a period of three days. Mount Mitchell has received snow in every month of the year.
What is the answer to this question: What mountain range makes up the coolest part of North Carolina?
****
So... The Appalachian Mountains

Article: On January 25, 1918, at the third meeting of the All-Russian Congress of Soviets, the unrecognized state was renamed the Soviet Russian Republic. On March 3, 1918, the Treaty of Brest-Litovsk was signed, giving away much of the land of the former Russian Empire to Germany, in exchange for peace in World War I. On July 10, 1918, the Russian Constitution of 1918 renamed the country the Russian Socialist Federative Soviet Republic. By 1918, during the Russian Civil War, several states within the former Russian Empire had seceded, reducing the size of the country even more.

Question: On what date was the country renamed the Russian Socialist Federative Soviet Republic?
Ans:
July 10, 1918