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 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: When was the mother of Hagood's daughter born? Passage:Hagood was born in Detroit, Michigan, and first sang at the age of 17 with Benny Carter. He sang with the Dizzy Gillespie Orchestra from 1946 to 1948 and then with Tadd Dameron later in 1948. He recorded two pieces with Thelonious Monk in 1948 and with Miles Davis on the Birth of the Cool sessions in 1950. He then moved to Chicago and later Paris. There in 1960 he had a short-lived marriage to Alice McLeod (later known as Alice Coltrane), who bore him a daughter. Hagood recorded with Guy Lafitte in the 1960s. He moved to Los Angeles, California, in 1965 to 1980. In the early 1980s he returned first to Chicago, and later to the Detroit area.

[A]: b


[Q]: Question: What is the population of the city that hosted the 2015 NACAC Championships? Passage:The United States of America will compete at the 2015 World Championships in Athletics from August 22 to August 30 in Beijing, China. The membership of the team was selected at the 2015 USA Outdoor Track and Field Championships. However, membership on the team was subject to the athlete achieving a qualification standard. In addition, champions from the previous World Championships and the 2014 IAAF Diamond League receive an automatic bye. An automatic entry is also available to an Area Champion, the IAAF definition of an Area essentially being the specified continental areas of the world. The United States is part of the North American, Central American and Caribbean Athletic Association, which held its championship August 7–9, 2015 in San Jose, Costa Rica where 20 athletes qualified. The deadline for entries was August 10. The final team membership as submitted to the IAAF was announced on August 10, 2015.

[A]:
b