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.

Ex Input:
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.


Ex Output:
b


Ex Input:
Question: What bands did David "Hawk" Wolinski write songs for? Passage:Seraphine co-wrote several songs for the band: "Lowdown" (a Top 40 hit for the band), the instrumentals "Prelude to Aire", "Aire", and "Devil's Sweet" from the album Chicago VII, "Little One", "Take Me Back to Chicago", "Show Me the Way", "Birthday Boy" and "Street Player". His writing partner was often David "Hawk" Wolinski, the keyboardist for Rufus featuring Chaka Khan. His song "Street Player" was sampled by The Bucketheads for the dance hit "The Bomb! (These Sounds Fall into My Mind)", and later by rapper Pitbull for the hit "I Know You Want Me (Calle Ocho)" from the album "Rebelution". The song samples "75, Brazil Street" by Nicola Fasano versus Pat Rich, which itself samples "Street Player". "I Know You Want Me" has also been featured in Dance Central, the dancing game for Kinect, Dance Dance Revolution X2 for PlayStation 2, and SingStar Dance, the dancing game for PlayStation Move.


Ex Output:
b


Ex Input:
Question: How big is the city Donaldson was born in? Passage:Donaldson was born in Islington, London, and was an England schoolboy international before beginning his football career with Arsenal. He was a member of their 1971 FA Youth Cup-winning side, but never broke through to the first team. In June 1973, he transferred to Second Division club Millwall for £5,000. The team were relegated in 1975, and Donaldson helped them achieve promotion back to the Second Division in 1975–76, and made 258 appearances in all competitions over a six-and-a-half-year period. He acted as an emergency goalkeeper three times during his Millwall career. He spent the summer of 1979 with the Los Angeles Skyhawks of the American Soccer League, and on 5 February 1980, signed for Second Division Cambridge United for a fee of £50,000. He made 132 league appearances for Cambridge and was featured in a 2002 book, Cambridge United: 101 Golden Greats. In 1984, he moved on to Royston Town of the Isthmian League.


Ex Output:

b