Given a question and a context passage, generate the answer having the word or phrase from the context passage. Here, the answer should be a shortest continous span from the passage.

[Q]: Context: Energy from the Sun comes from the lightest element, hydrogen, fusing together to create the second lightest element, helium. Nuclear fusion on the Sun releases tremendous amounts of solar energy. The energy travels to the Earth, mostly as visible light. The light carries the energy through the empty space between the Sun and the Earth as radiation. Solar energy has been used for power on a small scale for hundreds of years, and plants have used it for billions of years. Unlike energy from fossil fuels, which almost always come from a central power plant or refinery, solar power can be harnessed locally (Figure 1.1). A set of solar panels on a homes rooftop can be used to heat water for a swimming pool or can provide electricity to the house. Societys use of solar power on a larger scale is just starting to increase. Scientists and engineers have very active, ongoing research into new ways to harness energy from the Sun more efficiently. Because of the tremendous amount of incoming sunlight, solar power is being developed in the United States in southeastern California, Nevada, and Arizona. Solar panels supply power to the Interna- tional Space Station. Solar power plants turn sunlight into electricity using a large group of mirrors to focus sunlight on one place, called a receiver (Figure 1.2). A liquid, such as oil or water, flows through this receiver and is heated to a high temperature by the focused sunlight. The heated liquid transfers its heat to a nearby object that is at a lower temperature through a process called conduction. The energy conducted by the heated liquid is used to make electricity. This solar power plant uses mirrors to focus sunlight on the tower in the center. The sunlight heats a liquid inside the tower to a very high temperature, producing energy to make electricity. Solar energy has many benefits. It is extremely abundant, widespread, and will never run out. But there are problems with the widespread use of solar power. Sunlight must be present. Solar power is not useful in locations that are often cloudy or dark. However, storage technology is being developed. The technology needed for solar power is still expensive. An increase in interested customers will provide incentive for companies to research and develop new technologies and to figure out how to mass-produce existing technologies (Figure 1.3). Solar panels require a lot of space. Fortunately, solar panels can be placed on any rooftop to supply at least some of the power required for a home or business. This experimental car is one example of the many uses that engineers have found for solar energy. Click image to the left or use the URL below. URL: Click image to the left or use the URL below. URL: 
 Question: the source of solar power is nuclear
[A]: fusion.


[Q]: Context: This article's plot summary may be too long or excessively detailed. Please help improve it by removing unnecessary details and making it more concise. (April 2015) (Learn how and when to remove this template message) Part 1 Alice in Wonderland[edit] The first part opens with Alice helping Mother set the table for tea time. Although thankful for her daughter's help, Mother tells Alice that she is still not grown-up enough to join the adults at tea. Alice goes outside to see her sister (played by Natalie's real-life older sister Sharee Gregory), but gets bored of reading a book with no pictures. Her sister tells her that she will understand when she grows up, but Alice thinks she is already grown up (after all, she's seven and a half). While playing with her kitten, Dinah, the White Rabbit comes running by, saying he's late. Wondering where he is going, Alice follows him and tumbles into his rabbit hole. (Unlike the book and most movie versions, this rabbit hole appears to be dark and spooky.) Alice finds herself in a hall with many doors, and all of them locked. On a table is a key which she can use to open one small door. Yet the door is far too small to even fit her head in. A small bottle appears labeled "Drink Me". She comes back to the table and puts it to her lips. Doing this, she shrinks to the right size for the door, but can no longer reach the key to open it. She then sees a small box which she opens and finds a little cake with the words "Eat Me" on it. She then grows to over nine feet tall. Frustrated with the thought of being stuck at nine feet tall, she begins to cry. Her tears fall on the floor and flow under the cracks. The White Rabbit appears, but frightened of the giant Alice runs away dropping his fan and gloves. Using the fan makes Alice shrink again to a size small enough to crawl into one of the cracks, which takes her diving in her pool of tears. While swimming in the pool of her own tears, she meets The Lory Bird, The Dodo Bird and the Mouse, who tells her why he hates dogs and cats ("I Hate Dogs and Cats"). Alice catches up with the White Rabbit. He mistakes Alice for his housemaid Mary Ann and orders her to go get his fan and gloves from his house. While searching his house, Alice curiously finds another "Drink Me" bottle and it makes her sprout to her full nine-foot character once again. Angry at Alice, the rabbit and his friend Pat the Pig try to employ Bill the Lizard to remove Alice by pulling her out the chimney. Having tried unsuccessfully the White Rabbit and Pat begin throwing berries at her which turn into little cakes. She eats one and shrinks to back to size. After running away she meets the Caterpillar who tells her the story ("You are Old, Father William"). She then goes to the house of The Duchess and her pepper loving, plate throwing cook. Finding the house too violent and hateful, she takes the Duchess' baby away, but then it turns into a pig. She meets the Cheshire Cat, who tells her that she can't get out of this land ("There's No Way Home"). He then gives her directions to see either the March Hare or the Mad Hatter, but warns Alice that they, along with everyone else, are mad. Alice finds the Mad Hatter, March Hare, and the Dormouse having an outdoor tea party, and sits down to join them. As tea time entertainment the Mad Hatter, who does not like her version of twinkle, twinkle little star, sings Alice a song of his own ("Laugh"). Upset by the rudeness of the Mad Tea Party, Alice runs off back on her quest for the White Rabbit, and meets a baby fawn in the forest, the only normal thing she's seen so 
 Question: Who plays a prank on the queen?
[A]: the deck of cards


[Q]: Context: Dabigatran is a direct thrombin inhibitor used to reduce the risk of stroke in patients with nonvalvular atrial fibrillation. For patients who present with an acute stroke despite dabigatran therapy, clinical data on the use of intravenous tissue plasminogen activator (IV-tPA) is limited. There is an anticipated increased risk of symptomatic intracranial hemorrhage (sICH) when using IV-tPA in patients on dabigatran therapy. In 2015, the humanized monoclonal antibody fragment idarucizumab was approved for rapid (minutes) reversal of anticoagulant effects of dabigatran. Dabigatran reversal with idarucizumab before administration of IV-tPA might reduce the risk of sICH. We report a case of a 69-year-old stroke patient on dabigatran for paroxysmal atrial fibrillation who presented with an initial National Institutes of Health Stroke Scale (NIHSS) of 12. There was no early evidence of ischemic stroke or hemorrhage on head computed tomography, and coagulation studies implied therapeutic dabigatran levels. After controlling blood pressure, dabigatran was reversed with idarucizumab, and IV-tPA was administrated beginning 197minutes after he was last seen at his baseline. Subsequent brain magnetic resonance imaging showed 2 punctate infarcts in the left temporal lobe and occipital lobe with no evidence of hemorrhage. The patient was discharged with an NIHSS of 1. Telephone follow-up 2 months later indicated that he was at his prestroke baseline, except for a complaint of worsened short-term memory. Idarucizumab reversal of dabigatran may reduce the risk of sICH and should be considered for acute stroke patients arriving in the IV-tPA time window. 
 Question: Which drug can be reversed with idarucizumab?
[A]:
dabigatran