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.
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Question: Question: Does the Southeastern Freight Lines still operate out of Lexington, South Carolina? Passage:Southeastern Freight Lines was founded in 1950 by William T. Cassels in Lexington, South Carolina. The company first had 14 trucks and 20 employees with a $5,000 loan. In 1975 W. T. "Bill" Cassels, Jr. became President of Southeastern Freight. The Florence facility was opened in September 1953 where Bill Cassels, Jr. operated one of three trucks. On October 2, 1987 W. T. Cassels died leaving his son Cassels, Jr. as CEO of Southeastern Freight. "Tobin" Cassels III, who worked at Southeastern Freight since 1973, became President in 2001. The Augusta was established in March 1976. The expansion into the Southwest began in the 1990s with the establishment of a facility in New Orleans in 1996. Southeastern Freight expanded into the Texas market by expanding in Tyler in 2005. Eight years later Southeastern Freight further expanded in Texas with a Houston facility on February 21, 2013 and a Lubbock facility on May 11, 2015. International operations were expanded in October 2008 by offering four shipping options to Mexico. Kentucky operations of Southeastern Freight was established in 2015 with expansions to Lexington, Louisville and Bowling Green. On November 2, 2015 the West Atlanta service center opened enabling service to customers of West Georgia and East Alabama.


Answer: a


Question: 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.


Answer: a


Question: Question: Which of the organizations that are represented on  YBF's advisory board has the highest membership numbers?  Passage:As of September 2010, YBF's "advisory board" includes Matthew Elliott, founder of the UK TaxPayers' Alliance, and representatives of the Heritage Foundation (a US conservative thinktank), US Competitive Enterprise Institute and American Conservative Union (a US conservative lobbying organisation). It also includes the founder of the US Leadership Institute, the President of the US Jesse Helms Center, the President of the Young America's Foundation, the co-founder of the US Henry Jackson Society and a former Executive Director of the Collegiate Network. British representatives include Professor Patrick Minford, blogger Iain Dale (who resigned in the same year) and two local councillors. Liam Fox, the shadow defence secretary, was a member of the YBF's parliamentary council. Conor Burns was until shortly before becoming an MP in 2010 the vice-president of YBF.


Answer:
a