The problem: Answer a question about this article:
Domestic dogs have been selectively bred for millennia for various behaviors, sensory capabilities, and physical attributes. Modern dog breeds show more variation in size, appearance, and behavior than any other domestic animal. Dogs are predators and scavengers, and like many other predatory mammals, the dog has powerful muscles, fused wrist bones, a cardiovascular system that supports both sprinting and endurance, and teeth for catching and tearing.
What are dog teeth best suited for?
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The answer: catching and tearing.

Problem: Please answer a question about the following article about The Legend of Zelda: Twilight Princess:
Twilight Princess takes place several centuries after Ocarina of Time and Majora's Mask, and begins with a youth named Link who is working as a ranch hand in Ordon Village. One day, the village is attacked by Bulblins, who carry off the village's children with Link in pursuit before he encounters a wall of Twilight. A Shadow Beast pulls him beyond the wall into the Realm of Twilight, where he is transformed into a wolf and imprisoned. Link is soon freed by an imp-like Twilight being named Midna, who dislikes Link but agrees to help him if he obeys her unconditionally. She guides him to Princess Zelda. Zelda explains that Zant, the King of the Twilight, has stolen the light from three of the four Light Spirits and conquered Hyrule. In order to save Hyrule, Link must first restore the Light Spirits by entering the Twilight-covered areas and, as a wolf, recover the Spirits' lost light. He must do this by collecting the multiple "Tears of Light"; once all the Tears of Light are collected for one area, he restores that area's Light Spirit. As he restores them, the Light Spirits return Link to his Hylian form.
What must Link collect?
A: Tears of Light

Question: Read this and answer the question

Protestants reject the Roman Catholic Church's doctrine that it is the one true church, believing in the invisible church, which consists of all who profess faith in Jesus Christ. Some Protestant denominations are less accepting of other denominations, and the basic orthodoxy of some is questioned by most of the others. Individual denominations also have formed over very subtle theological differences. Other denominations are simply regional or ethnic expressions of the same beliefs. Because the five solas are the main tenets of the Protestant faith, non-denominational groups and organizations are also considered Protestant.

What type of church do Protestants believe in?
Answer: the invisible church

Problem: The Indian Institute of Technology Mandi, Himachal Pradesh University Shimla, Institute of Himalayan Bioresource Technology (IHBT, CSIR Lab), Palampur, the National Institute of Technology, Hamirpur, Indian Institute of Information Technology, Una the Central University Dharamshala, AP Goyal (Alakh Prakash Goyal) Shimla University, The Bahra University (Waknaghat, Solan) the Baddi University of Emerging Sciences and Technologies Baddi, IEC University, Shoolini University Of Biotechnology and Management Sciences, Solan, Manav Bharti University Solan, the Jaypee University of Information Technology Waknaghat, Eternal University, Sirmaur & Chitkara University Solan are some of the pioneer universities in the state. CSK Himachal Pradesh Krishi Vishwavidyalya Palampur is one of the most renowned hill agriculture institutes in world. Dr. Yashwant Singh Parmar University of Horticulture and Forestry has earned a unique distinction in India for imparting teaching, research and extension education in horticulture, forestry and allied disciplines. Further, state-run Jawaharlal Nehru Government Engineering College started in 2006 at Sundernagar.
When was the state run Nehru Government Engineering College started?
The answer is the following: 2006 at Sundernagar

Buckingham Palace finally became the principal royal residence in 1837, on the accession of Queen Victoria, who was the first monarch to reside there; her predecessor William IV had died before its completion. While the state rooms were a riot of gilt and colour, the necessities of the new palace were somewhat less luxurious. For one thing, it was reported the chimneys smoked so much that the fires had to be allowed to die down, and consequently the court shivered in icy magnificence. Ventilation was so bad that the interior smelled, and when a decision was taken to install gas lamps, there was a serious worry about the build-up of gas on the lower floors. It was also said that staff were lax and lazy and the palace was dirty. Following the queen's marriage in 1840, her husband, Prince Albert, concerned himself with a reorganisation of the household offices and staff, and with the design faults of the palace. The problems were all rectified by the close of 1840. However, the builders were to return within the decade.
Who was the first monarch to reside there?
Queen Victoria

Here is a question about this article: Since the early history of the United States, Amerindians, AfricanAmericans, and European Americans have been classified as belonging to different races. Efforts to track mixing between groups led to a proliferation of categories, such as mulatto and octoroon. The criteria for membership in these races diverged in the late 19th century. During Reconstruction, increasing numbers of Americans began to consider anyone with "one drop" of known "Black blood" to be Black, regardless of appearance.3 By the early 20th century, this notion was made statutory in many states.4 Amerindians continue to be defined by a certain percentage of "Indian blood" (called blood quantum). To be White one had to have perceived "pure" White ancestry. The one-drop rule or hypodescent rule refers to the convention of defining a person as racially black if he or she has any known African ancestry. This rule meant that those that were mixed race but with some discernible African ancestry were defined as black. The one-drop rule is specific to not only those with African ancestry but to the United States, making it a particularly African-American experience.
What is the answer to this question: What did efforts to track mixing between different groups lead to?
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So...
a proliferation of categories