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 Q]: Question: Did the show that Lange starred in from 1971 to 1974 win any Emmys? Passage:Lange returned to television for a 1966 role on the series The Fugitive (1963). She starred from 1968 to 1970 on the television series, The Ghost & Mrs. Muir for which she earned two Emmy Awards and a Golden Globe Award nomination. This success was followed by three seasons on The New Dick Van Dyke Show as Dick Van Dyke's wife, Jenny Preston, from 1971 to 1974, after which she declined to return for a fourth season of the show. She also appeared in twelve television movies, one being Crowhaven Farm where she played the role of a witch. In 1977, she returned to the Broadway stage where her acting career had originally begun. She also played the murdered wife of Charles Bronson's vigilante character in Death Wish (1974). In 1985, she appeared in , and in 1986, she took a role as Laura Dern's mother in David Lynch's Blue Velvet. She took a Broadway role in Same Time, Next Year and then made appearances in the television movie based on Danielle Steel's Message from Nam and in Clear and Present Danger (1994).

[EX A]: a

[EX Q]: Question: Was the stadium where Swann's most notable performance occurred built before 1990? Passage:For 2003, he signed with the Baltimore Orioles and again spent a few games in the majors. His most notable performance as a major leaguer occurred at Camden Yards on September 18, 2003. An attempt to avoid Hurricane Isabel by changing the game's start time from 7:05 pm (ET) to 12:35 pm proved futile as the contest was played entirely in a downpour. With the score tied at one, Swann opened the bottom of the fifth inning with a double off Mike Mussina. When Brian Roberts hit a one-out single to left field, Orioles third-base coach Tom Trebelhorn had initially waved Swann home. He abruptly put up the stop sign when left fielder Hideki Matsui quickly threw the ball to third baseman Aaron Boone. Swann, who was too far past third base, got caught in a rundown and was tagged out. When the inning ended with the Orioles failing to score a run, the match was suspended and replayed in its entirety eight days later on September 26 as part of a twi-night doubleheader at Yankee Stadium. The Orioles would have had a 2–1 victory had Swann successfully crossed home plate because the game became official upon the completion of the fifth inning.

[EX A]: b

[EX Q]: Question: What caused the demise of the previous imam? Passage:Yahya bin Hamza was a member of the Zaidi elite, but not of the dynasty of the Rassids that usually provided imams. He was a 13th-generation descendant of imam Ali ar-Ridha (d. 818). The old Yemeni imam al-Mahdi Muhammad bin al-Mutahhar had conquered large highland territories from the Rasulid Dynasty, including the commercially and politically important city San'a. After his demise in 1328, no less than four claimants for the imamate surfaced. Apart from Yahya, these included an-Nasir Ali bin Salah, Ahmad bin Ali al-Fathi, and the deceased imam's son al-Wathiq al-Mutahhar. Yahya emerged as the supreme figure and quickly secured San'a. With the city as his base, he waged war in the following years against Taiyabi Ismaili groups of the Hamdan tribe in the Wadi Dahr. The Rasulids were in no position to take back their lost lands in the Yemeni highland, leaving the Zaidi positions unthreatened. The imam was a prominent scholar who authored Al-Intisar, the most comprehensive Zaydiyyah law book, and Ad-Da'wa al-amma, a work encouraging struggle for the true faith. It was popularly said that the number of pages he wrote were equal to the days he lived. Al-Mu'ayyad Yahya died in 1346 (or, in another account, 1349), and was buried in Dhamar. On his death, San'a was seized by two Zaidi brothers, Ibrahim bin Abdallah and Da'ud bin Abdallah, who ruled as emirs and did not claim the imam title. Their family would control San'a until 1381.

[EX A]:
a