The problem: Answer a question about this article:
The study of the molecular and cellular components that comprise the immune system, including their function and interaction, is the central science of immunology. The immune system has been divided into a more primitive innate immune system and, in vertebrates, an acquired or adaptive immune system. The latter is further divided into humoral (or antibody) and cell-mediated components.
Vertebrates also have what type of immune system component?
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The answer: acquired or adaptive immune system


Problem: Please answer a question about the following article about Department store:
In New York City in 1846, Alexander Turney Stewart established the "Marble Palace" on Broadway, between Chambers and Reade streets. He offered European retail merchandise at fixed prices on a variety of dry goods, and advertised a policy of providing "free entrance" to all potential customers. Though it was clad in white marble to look like a Renaissance palazzo, the building's cast iron construction permitted large plate glass windows that permitted major seasonal displays, especially in the Christmas shopping season. In 1862, Stewart built a new store on a full city block with eight floors and nineteen departments of dress goods and furnishing materials, carpets, glass and china, toys and sports equipment, ranged around a central glass-covered court. His innovations included buying from manufacturers for cash and in large quantities, keeping his markup small and prices low, truthful presentation of merchandise, the one-price policy (so there was no haggling), simple merchandise returns and cash refund policy, selling for cash and not credit, buyers who searched worldwide for quality merchandise, departmentalization, vertical and horizontal integration, volume sales, and free services for customers such as waiting rooms and free delivery of purchases. His innovations were quickly copied by other department stores.
What policy did the Marble Palace introduce? 
A: "free entrance" to all potential customers.


Question: Read this and answer the question

The Bamar form an estimated 68% of the population. 10% of the population are Shan. The Kayin make up 7% of the population. The Rakhine people constitute 4% of the population. Overseas Chinese form approximately 3% of the population. Myanmar's ethnic minority groups prefer the term "ethnic nationality" over "ethnic minority" as the term "minority" furthers their sense of insecurity in the face of what is often described as "Burmanisation"—the proliferation and domination of the dominant Bamar culture over minority cultures.

What percentage of the population is of the  Rakhine descendant line ?
Answer: Rakhine people constitute 4% of the population


Problem: The first reports of the abbey are based on a late tradition claiming that a young fisherman called Aldrich on the River Thames saw a vision of Saint Peter near the site. This seems to be quoted to justify the gifts of salmon from Thames fishermen that the abbey received in later years. In the present era, the Fishmonger's Company still gives a salmon every year. The proven origins are that in the 960s or early 970s, Saint Dunstan, assisted by King Edgar, installed a community of Benedictine monks here.
What type of fish did the Abbey receive from Thames fisherman?
The answer is the following: salmon


On 23 June 1757, the English East India Company defeated Siraj-ud-Daula, the Nawab of Bengal, in the Battle of Plassey. The British thus became masters of east India (Bengal, Bihar, Orissa) – a prosperous region with a flourishing agriculture, industry and trade. This led to a large amount of children being forced into labour due to the increasing need of cheap labour to produce large numbers of goods. Many multinationals often employed children because that they can be recruited for less pay, and have more endurance to utilise in factory environments. Another reason many Indian children were hired was because they lack knowledge of their basic rights, they did not cause trouble or complain, and they were often more trustworthy. The innocence that comes with childhood was utilised to make a profit by many and was encouraged by the need for family income.
What was the primary reason for India children being employed?
lack knowledge of their basic rights


Here is a question about this article: In the late 1960s, the term heavy metal was used interchangeably with hard rock, but gradually began to be used to describe music played with even more volume and intensity. While hard rock maintained a bluesy rock and roll identity, including some swing in the back beat and riffs that tended to outline chord progressions in their hooks, heavy metal's riffs often functioned as stand-alone melodies and had no swing in them. Heavy metal took on "darker" characteristics after Black Sabbath's breakthrough at the beginning of the 1970s. In the 1980s it developed a number of subgenres, often termed extreme metal, some of which were influenced by hardcore punk, and which further differentiated the two styles. Despite this differentiation, hard rock and heavy metal have existed side by side, with bands frequently standing on the boundary of, or crossing between, the genres.
What is the answer to this question: By the late 60s, what term was synonymous with hard rock?
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So...
heavy metal