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.

Ex Input:
Context: Selenoproteins are an elite group of proteins containing a rare amino acid, selenocysteine (Sec), encoded by the codon, UGA. In eukaryotes, incorporation of Sec requires a Sec insertion sequence (SECIS) element, a stem-loop structure located in the 3'-untranslated regions of selenoprotein mRNAs. Here we report identification of a noncanonical form of SECIS element in Toxoplasma gondii and Neospora canine, single-celled apicomplexan parasites of humans and domestic animals. This SECIS has a GGGA sequence in the SBP2-binding site in place of AUGA previously considered invariant. Using a combination of computational and molecular techniques, we show that Toxoplasma and Neospora possess both canonical and noncanonical SECIS elements. The GGGA-type SECIS element supported Sec insertion in mammalian HEK 293 and NIH 3T3 cells and did so more efficiently than the natural mammalian SECIS elements tested. In addition, mammalian type I and type II SECIS elements mutated into the GGGA forms were functional but manifested decreased Sec insertion efficiency. We carried out computational searches for both AUGA and GGGA forms of SECIS elements in Toxoplasma and detected five selenoprotein genes, including one coding for a previously undescribed selenoprotein, designated SelQ, and two containing the GGGA form of the SECIS element. In contrast, the GGGA-type SECIS elements were not detected in mammals and nematodes. As a practical outcome of the study, we developed pSelExpress1, a vector for convenient expression of selenoproteins in mammalian cells. It contains an SBP2 gene and the most efficient tested SECIS element: an AUGA mutant of the GGGA-type Toxoplasma SelT structure. 
 Question: What is the name of the stem loop present in the 3' end of genes encoding for selenoproteins?

Ex Output:
secis


Ex Input:
Context: 4-Day Classic Beijing Tour The 4-day classic Beijing tour is designed for tourists who come to visit China for the first time. It covers the most popular and typical places in Beijing, fully displaying the scenery, culture, history, local lifestyles and features, food and drinks, business, etc. for you. Day 1:Arrival in Beijing Your guide meets you at Capital Airport, and helps you check in at your hotel. Enjoy Beijing Duck as welcome dinner. Accommodation: Beijing downtown Day 2:The Great Wall & the Summer Palace Start your day at the most famous part of the Great Wall, the Badaling Great Wall. Leave the downtown for the Great Wall at 8 am. Since it is a long drive to the Great Wall (about 2 hours' riding) have a break at the Jade Museum on the way. Lunch will be enjoyed in a local restaurant. In the early afternoon come back to the city and have a sightseeing tour of the Summer Palace. Recommended Activity: Beijing Opera Show (Liyuan Theatre, 19:30-21: 10 every evening) Accommodation: Beijing downtown Day 3:Beijing city sightseeing & Local experience Your guide meets you at the hotel at 8 am and set out for the day's touring: Tian'anmen Square and the Forbidden City. After visiting the two sites, have a break and get ready for lunch. Hutong visit: see some traditional arts of the old Beijing, such as paper cutting and kite making, and visit a local family. Accommodation: Beijing downtown Day 4:Beijing Olympic sites Visit the Olympic sites: Bird's Nest, Water Cube and Olympic Park, witnessing the fast developing modern China. Enjoy some free time after visiting the sites. After lunch, it is shopping time and then the tour is over. 
 Question: What does this tour company think can show Beijing is a fast developing modern city?

Ex Output:
bird's nest, water cube and olympic park.


Ex Input:
Context: Planning your to-do list for the coming year? To help you out, we've collected our favorite must-see events across Canada. Ready, go! Red or white? Every spring wine growers get together to celebrate the beginning of another grape-growing season at the Okanagan Spring Wine Festival. The best time to visit the Okanagan is usually from May 1 to 10. The festival allows visitors to taste the best wines in Canada together with unique dishes representing the latest developments in local cuisine. The jazz festival Montreal's downtown comes alive every summer during the International Jazz Festival. The Festival International de Jazz de Montreal is an annual jazz festival held in Montreal, Quebec, Canada. The Montreal Jazz Fest held the 2004 Guinness World Record as the world's largest jazz festival. This year the event is scheduled to run from June 29 to July 9. Stages replace cars along busy streets. With a host of free outdoor shows, you'll be snapping your fingers to anything from Dixieland to blues, African beats to modern trip-hop, and everything in between. Are you ready? Just head east to the Newfoundland Targa Rally, which runs from September 9 to 16 this year. The 2,200-kilometre race dashes across the eastern and central parts of the province, and is the largest race of its kind in North America. On these sections you race against the clock rather than other competitors. This is a great chance to test your car's limits and your skills. Hello spring! In 1945, thousands of tulip bulbs gifts from Holland, were planted on Ottawa's Parliament Hill, Canada. These gifts were a thank-you to Canadian soldiers who helped set Holland free in World WarII. Since then, the capital has become home to the Canadian Tulip Festival. From May 4 to 22, Ottawa and Gatineau (a city of southwest Quebec) will be covered with beautiful flowers. Besides three million tulips, visitors can also attend concerts, featuring some of Canada's brightest musical stars. 
 Question: Wine lovers can enjoy themselves .

Ex Output:

from may 1 to 10