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.
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Question: Context: Elena Wexler-Kreindler (15 October 1931 -- August 2002) was a Romanian mathematician. 
 Question: The date of birth of Elena Wexler-Kreindler is?

Answer: 15 october 1931


Question: Context: Sir Wilfred Robarts, a famed barrister, has just been released from the hospital in which he stayed for two months following a heart attack. Returning to his practise of law, he takes the case of Leonard Vole, an unemployed man who is accused of murdering his elderly friend, Mrs. Emily French. Vole claims he's innocent, although all evidence points to him as the killer, but his alibi witness, his cold German wife Christine, instead of entering the court as a witness for the defense, becomes the witness for the prosecution and defiantly testifies that her husband is guilty of the murder. Sir Wilfred believes there's something suspicious going on with the case, particularly with Mrs. Vole. 
 Question: What is Sir Wilfred Robert's profession?

Answer: barrister


Question: Context: At 21,Ricardo Semler became boss of his father's business in Brazil,Semco,which sold parts for ships. Semler Junior worked like a mad man,from 7:30 am,until midnight every day. One afternoon,while touring a factory in New York,he broke down. The doctor who treated him said,"There's nothing wrong with you. But if you continue like this, you'll find a new home in our hospital. "Semler got the message. He changed the way he worked. In fact,he changed the ways his employees worked too. He let his workers take more responsibility so that they would be the ones worrying when things went wrong. He allowed them to set their own salaries,and he cut all the jobs he thought were unnecessary,like receptionists and secretaries. This saved money and brought more equality to the company. "Everyone at Semco,even top managers,meets guests in reception,does the photocopying,sends faxes,types letters and dials the phone." He completely reorganized the office:instead of walls,they have plants at Semco,so bosses can't shut themselves away from everyone else. And the workers are free to decorate their workspace as they want. As for uniforms,some people wear suits and others wear T-shirts. Semco has flexible working hours:the employees decide when they need to arrive at work. Also,Semco lets its workers use the company's machines for their own projects,and makes them take holidays for at least thirty days a year. It sounds perfect,but does it work? The answer is in the numbers:in the last six years,Semco's revenues have gone from $35 million to $212 million. The company has grown from eight hundred employees to 3,000. Why? Semler says it's because of "peer pressure". Peer pressure makes employees work hard for everyone else. If someone isn't doing his job well,the other workers will not allow the situation to continue. In other words,Ricardo Semler treats his workers like adults rather than children, and expects them to act like responsible adults. And they do. 
 Question: In his company, what does Ricardo Semler value most?

Answer:
responsibility