Complex sentence: Bates is ranked as one of the top liberal arts colleges and as of 2015, was listed as the nineteenth-best liberal arts college in the country in the 2015 U.S. News & World Report rankings.
Split into simpler sentences: Bates is ranked as one of the top liberal arts colleges and as of 2015. It was listed as the nineteenth-best liberal arts college in the country in the 2015 U.S. News & World Report rankings.