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.

Example Input: Context: Language Matters with Bob Holman is a 2015 documentary which focuses upon the rapid extinction of many of planet Earth's human languages and the multifarious struggles and efforts to save and preserve them. 
 Question: In what year was Language Matters with Bob Holman created?
Example Output: 2015

Example Input: Context: 35 Leukothea (/ljuki/ lew-KOTH-ee-, Greek: ) is a large, dark asteroid from the asteroid belt It was discovered by German astronomer Karl Theodor Robert Luther on April 19, 1855, and named after Leukothea, a sea goddess in Greek mythology. 
 Question: Who discovered the 35 Leukothea?
Example Output: robert luther

Example Input: Context: Summer cools down in August when the city features a lot of jazz to send excitement to any music fan. Beginning August 28, the city hosts a week of jazz performances in a variety of places. This year's annual Jazz Festival in Grant Park will offer a "tribute to New Orleans" with performers from the city, honoring the birthplace of Jazz. Jazz fans who want to be part of the week-long celebration can start with a free concert at Millennium Park's famous Pritzker Pavilion on Monday, August 28 at 6:30 pm. * Other events will include: Tuesday, August 29 -- the Jazz Institute of Chicago presents the Fourth Annual Gala Concert. Wednesday, August 30 -- Heat up Wednesday night with a ride to the best jazz hot spots and learn a bit of history of the genre with the Jazz Institute's Jazz Club Tour, which starts at 6 pm until midnight. For one low price, visit more than a dozen Jazz Clubs. The tour covers nearly every inch of Chicago. *The Chicago Jazz Festival Officially opens with a ticketed performance at the Symphony Center on Thursday, August 31. Then, the festival moves to Grant Park on Friday, September 1, for three days of free music on three stages. The event opens daily at 11 am. * Performance hours are: Jazz on Jackson Stage 12 pm -- 4:30 pm. Jazz & Heritage Family Stage 12:30 pm -- 4:30 pm. Petrillo Music Shell 5 pm -- 9:30 pm. * In addition to the music, the Chicago Jazz Festival features an art fair lying in the rose garden just south of Jackson. The fair offers all kinds of handmade crafts and artwork. 
 Question: What is special for the Chicago Jazz Festival this year?
Example Output:
tribute to new orleans.