Input: Kanye West
West began an on-and-off relationship with designer Alexis Phifer in 2002, and they became engaged in August 2006. The pair ended their 18-month engagement in 2008. West subsequently dated model Amber Rose from 2008 until the summer of 2010. West began dating reality star and longtime friend Kim Kardashian in April 2012. West and Kardashian became engaged in October 2013, and married on May 24, 2014 at Fort di Belvedere in Florence, Italy. Their private ceremony was subject to widespread mainstream coverage, with West taking issue with the couple's portrayal in the media. They have two children: daughter North "Nori" West (born June 15, 2013) and son Saint West (born December 5, 2015). In April 2015, West and Kardashian traveled to Jerusalem to have North baptized in the Armenian Apostolic Church at the Cathedral of St. James. The couple's high status and respective careers have resulted in their relationship becoming subject to heavy media coverage; The New York Times referred to their marriage as "a historic blizzard of celebrity."

When did Alexis Phifer and Kanye West get engaged?
Output: August 2006


Input: Article: The Byzantine Empire ruled the northern shores of the Sahara from the 5th to the 7th centuries. After the Muslim conquest of Arabia (Arabian peninsula) the Muslim conquest of North Africa began in the mid-7th to early 8th centuries, Islamic influence expanded rapidly on the Sahara. By the end of 641 all of Egypt was in Muslim hands. The trade across the desert intensified. A significant slave trade crossed the desert. It has been estimated that from the 10th to 19th centuries some 6,000 to 7,000 slaves were transported north each year.

Now answer this question: What is the estimated number of slaves that were   transported each year?

Output: 6,000 to 7,000 slaves


Article: Double fertilization refers to a process in which two sperm cells fertilize cells in the ovary. This process begins when a pollen grain adheres to the stigma of the pistil (female reproductive structure), germinates, and grows a long pollen tube. While this pollen tube is growing, a haploid generative cell travels down the tube behind the tube nucleus. The generative cell divides by mitosis to produce two haploid (n) sperm cells. As the pollen tube grows, it makes its way from the stigma, down the style and into the ovary. Here the pollen tube reaches the micropyle of the ovule and digests its way into one of the synergids, releasing its contents (which include the sperm cells). The synergid that the cells were released into degenerates and one sperm makes its way to fertilize the egg cell, producing a diploid (2n) zygote. The second sperm cell fuses with both central cell nuclei, producing a triploid (3n) cell. As the zygote develops into an embryo, the triploid cell develops into the endosperm, which serves as the embryo's food supply. The ovary now will develop into fruit and the ovule will develop into seed.

Question: What serves as the embryo's food supply?
Ans: endosperm


Here is a question about this article: In the early 20th century, many anthropologists accepted and taught the belief that biologically distinct races were isomorphic with distinct linguistic, cultural, and social groups, while popularly applying that belief to the field of eugenics, in conjunction with a practice that is now called scientific racism. After the Nazi eugenics program, racial essentialism lost widespread popularity. Race anthropologists were pressured to acknowledge findings coming from studies of culture and population genetics, and to revise their conclusions about the sources of phenotypic variation. A significant number of modern anthropologists and biologists in the West came to view race as an invalid genetic or biological designation.
What is the answer to this question: Who taught and accepted the belief that biologically distinct races were isomorphic?
****
So... many anthropologists


The problem: Answer a question about this article:
Phase-two mode can only be activated by a key switch located inside the elevator on the centralized control panel. This mode was created for firefighters so that they may rescue people from a burning building. The phase-two key switch located on the COP has three positions: off, on, and hold. By turning phase two on, the firefighter enables the car to move. However, like independent-service mode, the car will not respond to a car call unless the firefighter manually pushes and holds the door close button. Once the elevator gets to the desired floor it will not open its doors unless the firefighter holds the door open button. This is in case the floor is burning and the firefighter can feel the heat and knows not to open the door. The firefighter must hold door open until the door is completely opened. If for any reason the firefighter wishes to leave the elevator, they will use the hold position on the key switch to make sure the elevator remains at that floor. If the firefighter wishes to return to the recall floor, they simply turn the key off and close the doors.
What is the purpose of the Phase-two mode?
****
The answer: This mode was created for firefighters so that they may rescue people from a burning building


The problem: Answer a question about this article:
During the last three minutes of a half, the penalty for failure to place the ball in play within the 20-second play clock, known as "time count" (this foul is known as "delay of game" in American football), is dramatically different from during the first 27 minutes. Instead of the penalty being 5 yards with the down repeated, the base penalty (except during convert attempts) becomes loss of down on first or second down, and 10 yards on third down with the down repeated. In addition, as noted previously, the referee can give possession to the defence for repeated deliberate time count violations on third down.
At which point in a game is the time the offence takes to put the ball in play measured?
****
The answer:
last three minutes of a half