In this task, you're given a question, along with a context passage. The passage will not have a direct answer to the question, but can include some information and a clue for the answer. Assuming you can only obtain information about one entity in the passage, your job is to determine whether information from the passage can be used to answer the question. Indicate your choice as `a` for Yes or `b` for No.

Q: Question: How long had Nawaz Sharif been in power as the Prime Minister when he acknowledged his country's nuclear capabilities? Passage:After the Soviet withdrawal from Afghanistan, the rivalry between Iran and Pakistan intensified. After 1989, both state's policies in Afghanistan became even more divergent as Pakistan, under Benazir Bhutto, explicitly supported Taliban forces in Afghanistan. This resulted in a major breach, with Iran becoming closer to India. Pakistan's support for the Sunni Taliban organisation in Afghanistan became a problem for Shia Iran which opposed a Taliban-controlled Afghanistan. The Pakistani backed Taliban fought the Iranian backed Northern Alliance in Afghanistan and gained control of 90 percent of that country. As noted by a Pakistani foreign service officer, it was difficult to maintain good relations with Israel, Saudi Arabia, the United States, and Iran at the same time, given Iran's long history of rivalry with these states. In 1995 Bhutto paid a lengthy state visit to Iran, which greatly relaxed relations. At a public meeting she spoke highly of Iran and Iranian society. However, increasing activity by Shia militants in Pakistan strained relations further. This was followed by the Taliban's capture of the city of Mazar-i-Sharif in 1998, in which thousands of Shias were massacred, according to Amnesty International. The most serious breach in relations came in 1998, after Iran accused Taliban Afghanistan of taking 11 Iranian diplomats, 35 Iranian truck drivers and an Iranian journalist hostage, and later killing them all. Iran massed over 300,000 troops on the Afghan border and threatened to attack the Taliban government, which it had never recognized. This strained relations with Pakistan, as the Taliban were seen as Pakistan's key allies. In May 1998, Iran criticised Pakistan for its nuclear testing in the Chagai region, and held Pakistan accountable for global "atomic proliferation". New Prime Minister Nawaz Sharif acknowledged his country's nuclear capability on 7 September 1997.


A: b
****
Q: Question: How many years apart in age were Sweyn's sons? Passage:Gorm's son, Harald Bluetooth succeeded his father as king and married possibly three times with Gunhild, Tove and Gyrid. Harald had a son named Sweyn Forkbeard. Sweyn succeeded his father as king and married Gunhild (Świętosława of Poland). They had a son named Cnut the Great. Sweyn also ruled England in his lifetime and established the Danish Empire. When Sweyn died, his elder son Harald Svendsen became the King of Denmark, while England's former king, Ethelred, reclaimed the throne. Following Harald's death, his brother Cnut the Great became king, re-established the Danish North Sea Empire. He married Emma of Normandy with whom he had a son named Harthacnut. When Cnut died (and after the brothers of Harthacnut also had died), Harthacnut became king of Denmark and England. Upon his death, Edward the Confessor became ruler of England in 1042. Sweyn Forkbeard also had a daughter, Estrid, from whom all ruling kings and queens of Denmark after 1047 descend.


A: b
****
Q: Question: Which of the two actresses who were scheduled to star opposite McConaughey in Gold (2016) is older? Passage:On January 28, 2015, it was announced that the film would be directed by Stephen Gaghan, replacing Lee, and it would be shot in June 2015 in New York City, New Mexico and Thailand, while the film's foreign sales would be handled by Sierra/Affinity. Producers would be Schwarzman and Nozik, along with Massett, Zinman and McConaughey, while Haggis would executive-produce along with Richard Middleton. On February 12, 2015, Sierra/Affinity sold the film to international distributors at European Film Market in Berlin. Édgar Ramírez was added to the cast on March 18, 2015, to play the role of geologist Michael Acosta. On March 30, 2015, The Weinstein Company acquired the film's US distribution rights for $15 million, and the film would release domestically through company's TWC-Dimension label. On May 15, 2015, Michelle Williams was set to star alongside McConaughey, to play his character's wife. Joshua Harto signed-on on June 3, 2015, to play Lloyd Stanton, the businessman's bank account manager. Timothy Simons was added to the cast on June 12, 2015, to play a Wall Street banker who is coaxed by the duo to inspect the potential value of the company in the jungles of Borneo. Michael Landes also signed-on on June 29, 2015, to star in the film. On August 28, 2015, Bryce Dallas Howard was confirmed to cast in the film for the female lead role of Kay, Wells' longtime girlfriend, replacing Michelle Williams. The other cast added included Corey Stoll, Toby Kebbell, Bruce Greenwood, and Stacy Keach. Daniel Pemberton composed the film's score.


A:
b
****