Input: Wood
In grading lumber and structural timber, knots are classified according to their form, size, soundness, and the firmness with which they are held in place. This firmness is affected by, among other factors, the length of time for which the branch was dead while the attaching stem continued to grow.

Along with firmness, soundness, and form, what property of a knot is classified?
Output: size


Input: Article: According to a tradition first reported by Sulcard in about 1080, a church was founded at the site (then known as Thorn Ey (Thorn Island)) in the 7th century, at the time of Mellitus, a Bishop of London. Construction of the present church began in 1245, on the orders of King Henry III.

Now answer this question: In what century was the church established at the location?

Output: 7th century


Article: The Chihuahuan Desert is home to a diverse ecosystem which is home to a large variety of mammals. The most common mammals in the desert include: Desert cottontail Sylvilagus audubonii, black-tailed jackrabbit Lepus californicus, hooded skunk Mephitis macroura, cactus mouse Peromyscus eremicus, swift fox Vulpes velox, white-throated woodrat Neotoma albigula, pallid bat Antrozous pallidus, and coyote Canis latrans. The most observed reptiles in the desert include: Mohave rattlesnake Crotalus scutulatus, twin-spotted rattlesnake Crotalus pricei, prairie rattlesnake Crotalus viridis, ridge-nosed rattlesnake Crotalus willardi, whip snake Masticophis flagellum, New Mexico whiptail Cnemidophorus neomexicanus, and red-spotted toad Bufo punctatus.

Question: The Chihuahuan Desert is home to many of which type of animal?
Ans: mammals


Here is a question about this article: A brash boosterism that had typified Melbourne during this time ended in the early 1890s with a severe depression of the city's economy, sending the local finance and property industries into a period of chaos during which 16 small "land banks" and building societies collapsed, and 133 limited companies went into liquidation. The Melbourne financial crisis was a contributing factor in the Australian economic depression of the 1890s and the Australian banking crisis of 1893. The effects of the depression on the city were profound, with virtually no new construction until the late 1890s.
What is the answer to this question: When did Australia have a banking crisis?
****
So... 1893.


The problem: Answer a question about this article:
On June 12, 1990, the Congress of People's Deputies of the Republic adopted the Declaration of State Sovereignty of the Russian SFSR, which was the beginning of the "War of Laws", pitting the Soviet Union against the Russian Federation and other constituent republics.
What was the name of the period inaugurated by the passage of the Declaration of State Sovereignty of the Russian SFSR?
****
The answer: the "War of Laws"


The problem: Answer a question about this article:
During World War II, the palace was bombed nine times, the most serious and publicised of which resulted in the destruction of the palace chapel in 1940. Coverage of this event was played in cinemas all over the UK to show the common suffering of rich and poor. One bomb fell in the palace quadrangle while King George VI and Queen Elizabeth were in residence, and many windows were blown in and the chapel destroyed. War-time coverage of such incidents was severely restricted, however. The King and Queen were filmed inspecting their bombed home, the smiling Queen, as always, immaculately dressed in a hat and matching coat seemingly unbothered by the damage around her. It was at this time the Queen famously declared: "I'm glad we have been bombed. Now I can look the East End in the face". The royal family were seen as sharing their subjects' hardship, as The Sunday Graphic reported:
The King and Queen were filmed doing what after a bombing?
****
The answer:
inspecting their bombed home