TASK DEFINITION: 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.
PROBLEM: Context: Below are Top 10 Scholarly Stars in America in 2011. It's not always about fame and fortune for these celebs - education is a priority in their lives. Find out what scholarly stars have earned degrees and diplomas or are returning to the classroom as you head back to school. No. 10: James Franco James has attended FOUR prestigious universities in his life: UCLA, New York University, Columbia University and Yale University. We hear he's is so serious about school, he missed the Oscar nominations to attend class! No. 9: Natalie Portman Natalie Portman is so Ivy League: she graduated from Harvard University in 2003, thanks to her parents, who she says always made sure she put her studies before her acting. No. 8: Haley Joel Osment When students at NYU heard Haley Joel would be joining them as a freshman in 2006, they chalked the campus' sidewalks with his famous Sixth Sense movie line: "I see dead people." No. 7: Emma Watson Although Emma Watson put her education on hold to wrap up the Harry Potter film series, in July 2011 she announced that she was going back to school at Brown University to complete her degree. No. 6: Dakota and Elle Fanning Celeb sisters Dakota and Elle Fanning are stars on screen and in class. Dakota was her high school's homecoming queen two years in a row while Elle, who still attends middle school, somehow manages to balance her acting career with math tests and gym class. No. 5: Mara Wilson Mara Wilson graduated from NYU in 2009. Mara, who played the adorable Nattie in Mrs. Doubtfire, eventually grew up and headed to New York to attend NYU's Tisch School of the Arts; she graduated in 2009. No. 4: Tyra Banks Tyra Banks is known for being a savvy businesswoman, but even the best could use some formal training. She enrolled in Harvard Business School in 2011 and even went so far as to live in a dorm with her fellow classmates! "We live in dorms," confirmed the TV star. "I have my own room but we share a kitchen, living room and study area. It's mandatory dorms. I freaked out. In the beginning I was like, 'Oh yes, I'm going to Harvard and I'll be at the Four Seasons down the street.' And they were like, 'Girl, you're living in dorms!'" No. 3: Shakira Singer Shakira is resting her hips and giving her brain a workout at UCLA, attending classes on the history of western civilization so she could "learn from the best". No. 2: Steven Spielberg Director Steven skipped getting a formal education to be an unpaid intern at Universal Studios, where he learned his tricks of the _ . But eventually he did go back and earned his film degree in 2002. No. 1: Danica McKellar Danica McKellar is a math whiz. She used to be known for starring as Winnie Cooper in the Wonder Years, but Danica is also a UCLA graduate, math whiz and education advocate who's written three best-selling books encouraging middle-school girls to have confidence and succeed in mathematics. 
 Question: How many stars referred to in the material studied or will go to UCLA?

SOLUTION: three.

PROBLEM: Context: Mosqueiro is an island near the south bank of the Para River in the Brazilian state of Para, roughly north of downtown Belem. 
 Question: What body of water was Mosqueiro next to?

SOLUTION: pará river

PROBLEM: Context: Osteoarthritis (OA) is a degenerative joint disorder commonly encountered in clinical practice, and is the leading cause of disability in elderly people. Due to the poor self-healing capacity of articular cartilage and lack of specific diagnostic biomarkers, OA is a challenging disease with limited treatment options. Traditional pharmacologic therapies such as acetaminophen, non-steroidal anti-inflammatory drugs, and opioids are effective in relieving pain but are incapable of reversing cartilage damage and are frequently associated with adverse events. Current research focuses on the development of new OA drugs (such as sprifermin/recombinant human fibroblast growth factor-18, tanezumab/monoclonal antibody against -nerve growth factor), which aims for more effectiveness and less incidence of adverse effects than the traditional ones. Furthermore, regenerative therapies (such as autologous chondrocyte implantation (ACI), new generation of matrix-induced ACI, cell-free scaffolds, induced pluripotent stem cells (iPS cells or iPSCs), and endogenous cell homing) are also emerging as promising alternatives as they have potential to enhance cartilage repair, and ultimately restore healthy tissue. However, despite currently available therapies and research advances, there remain unmet medical needs in the treatment of OA. This review highlights current research progress on pharmacologic and regenerative therapies for OA including key advances and potential limitations. 
 Question: What is the target of tanezumab?

SOLUTION:
ngf