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: What is one key difference between the Indus Valley civilization and early Vedic civilizations? Passage:The book discusses four prehistoric migrations in India. The book mentions that the Harappans were a mixture of Zagros agriculturists and First Indians, a wave of migrants who came from Africa into Arabia and then reached India around 65,000 years ago. Citing recent DNA evidence, the book traces the subsequent large migrations of anatomically modern humans into Indiaof agriculturalists from Iran between 7000 and 3000 BCE and Indo-European languages speaking pastoralists from the Central Asian Steppe (Aryans) between 2000 and 1000 BCE, among others. Tony Joseph used pizza as a metaphor to explain the break-up of subcontinental society. The book also discusses about similarities and differences between Indus Valley civilization and early Vedic civilization. The book mentions that 'Aryan' culture was most likely the result of interaction, adoption and adaptation among those who brought Indo-European languages to India and those who were already well-settled inhabitants of the region, and that Sanskrit and Vedas developed in the Indian subcontinent. Various tribes like the Andamanese and the Semang (Malay Peninsula), the Mani (Thailand) and the Aeta people (the Philippines) were the earliest inhabitants of Southeast Asia. According to Joseph, Proto-Dravidian is related to the Elamitic language of Iran. Caste system in India is a recent social system, reflected in sharply reduced inter-marriage (endogamy) and genetic mixing after 100 AD. This book also takes into account the path-breaking DNA research and findings from geneticist David Reich's research.

[A]: a

[Q]: Question: Of the first two post-doc positions John Ellis held, which company did he work for the longest? Passage:After completing his secondary education at Highgate School, he attended King's College, Cambridge, earning his PhD in theoretical (high-energy) particle physics in 1971. After brief post-doc positions at SLAC and Caltech, he went to CERN and has held an indefinite contract there since 1978. He was awarded the Maxwell Medal and the Paul Dirac Prize by the Institute of Physics in 1982 and 2005 respectively, and is an Elected Fellow of the Royal Society of London since 1985 and of the Institute of Physics since 1991. He was awarded an Honorary Doctorate from the University of Southampton, and twice won the First Award in the Gravity Research Foundation essay competition (in 1999 and 2005). He is also Honorary Doctor at Uppsala University.

[A]: a

[Q]: Question: When was the country and western label based in Chicago formed? Passage:Black Jazz Records was a jazz record company and label founded in Oakland, California by pianist Gene Russell (December 2, 1932 - May 3, 1981) and percussionist Dick Schory. The label was created to promote the talents of young African American jazz musicians and singers, and released twenty albums between 1971 and 1975. Some of the more notable artists to record for Black Jazz Records were Cleveland Eaton, former bassist for Count Basie and Ramsey Lewis, and organist/pianist Doug Carn, whose four albums were the most successful of any Black Jazz artist. Carn's wife at the time, Jean Carn, sang on his albums; she changed her name to Jean Carne and went on to have a successful solo career as an R & B singer. Singer Kellee Patterson gained notoriety as the first black Miss Indiana in 1971, before recording her debut album, Maiden Voyage, with Black Jazz Records in 1973. The label was distributed and financed by Ovation Records, a country and western label based in Chicago, which was also founded by Schory. Black Jazz Records was considered at the time to be the first jazz label started by an African American since brothers John and Reb Spikes started Sunshine Records in 1921.

[A]:
b