TASK DEFINITION: Given a context passage, generate a question from the passage such that its answer is shortest continous span from the passage.
PROBLEM: Our objective was to evaluate the diagnostic value of computed tomography angiography (CTA) and ventilation perfusion (V/Q) scan in the assessment of pulmonary embolism (PE) by means of a Bayesian statistical model. Wells criteria defined pretest probability. Sensitivity and specificity of CTA and V/Q scan for PE were derived from pooled meta-analysis data. Likelihood ratios calculated for CTA and V/Q were inserted in the nomogram. Absolute (ADG) and relative diagnostic gains (RDG) were analyzed comparing post- and pretest probability. Comparative gain difference was calculated for CTA ADG over V/Q scan integrating ANOVA p value set at 0.05. The sensitivity for CT was 86.0% (95% CI: 80.2%, 92.1%) and specificity of 93.7% (95% CI: 91.1%, 96.3%). The V/Q scan yielded a sensitivity of 96% (95% CI: 95%, 97%) and a specificity of 97% (95% CI: 96%, 98%). Bayes nomogram results for CTA were low risk and yielded a posttest probability of 71.1%, an ADG of 56.1%, and an RDG of 374%, moderate-risk posttest probability was 85.1%, an ADG of 56.1%, and an RDG of 193.4%, and high-risk posttest probability was 95.2%, an ADG of 36.2%, and an RDG of 61.35%. The comparative gain difference for low-risk population was 46.1%; in moderate-risk 41.6%; and in high-risk a 22.1% superiority. ANOVA analysis for LR+ and LR- showed no significant difference (p=0.8745, p=0.9841 respectively). This Bayesian model demonstrated a superiority of CTA when compared to V/Q scan for the diagnosis of pulmonary embolism. Low-risk patients are recognized to have a superior overall comparative gain favoring CTA.

SOLUTION: What can be predicted with the Wells criteria?

PROBLEM: In the Atlantic, the West India Company concentrated on wresting from Portugal its grip on the sugar and slave trade, and on opportunistic attacks on the Spanish treasure fleets on their homeward bound voyage. Bahia on the north east coast of Brazil was captured in 1624 but only held for a year before it was recaptured by a joint Spanish-Portuguese expedition. In 1628, Piet Heyn captured the entire Spanish treasure fleet, and made off with a vast fortune in precious metals and goods that enabled the Company two years later to pay its shareholders a cash dividend of 70%, though the Company was to have relatively few other successes against the Spanish. In 1630, the Dutch occupied the Portuguese sugar-settlement of Pernambuco and over the next few years pushed inland, annexing the sugar plantations that surrounded it. In order to supply the plantations with the manpower they required, a successful expedition was launched in 1637 from Brazil to capture the Portuguese slaving post of Elmina, and in 1641 successfully captured the Portuguese settlements in Angola. In 1642, the Dutch captured the Portuguese possession of Axim in Africa. By 1650, the West India Company was firmly in control of both the sugar and slave trades, and had occupied the Caribbean islands of Sint Maarten, Curacao, Aruba and Bonaire in order to guarantee access to the islands' salt-pans.

SOLUTION: What were two things the West India Company desired?

PROBLEM: A "secret" message, unseen for almost 150 years and making the start of the U.S. Civil War (1861-1865), has been uncovered in Abraham Lincoln's gold pocket watch, prefix = st1 /U.S.media reported on Wednesday. "Lincolnnever knew of the message he carried in his pocket," Brent D. Glass, director of the National Museum of American History said in a statement. The message, which was engraved by an Irish immigrant and watchmaker named Jonathan Dillon, is dated April 13, 1861, and reads in part: "FortSumpter[sic] was attacked by the rebels" and "thank God we have a government." "It's a personal side of history about an ordinary watchman being inspired to record something for _ ," Glass said. The museum decided to open the watch after being contacted by the watchmaker's great-great-grandson, Doug Stiles, who had received a letter from a in Ireland. It said that the family had found a letter Dillon had written about the purported message in the watch. Then Stiles, a 57 -year-old real estate lawyer in Waukegan,Illinois, searched on the Internet and found a New York Times article from 1906, where Dillon told the story at the age of 84. During the interview, Dillon said that he unscrewed the dial of the watch and wrote on the metal as soon as he heard the news about the first shot of the Civil War. "The first gun is fired. Slavery is dead. Thank God we have a President who at least will try." However, the actual message that the museum found is different from what Dillon recalled. It reads, "Jonathan Dillon, April 13-1861, Fort Sumpter [sic] was attacked by the rebels on the above date J Dillon, April 13 -1861, Washington, thank God we have a government, Jonth Dillon."

SOLUTION:
Who wrote the message in Abraham Lincoln's pocket watch?