Complex sentence: The university is Virginia's only member of the prestigious Association of American Universities for North American research institutions, is regarded as the state's flagship research university by the College Board, and is classified as "Very High Research Activity" in the Carnegie Classification.
Split into simpler sentences: The university is Virginia's only member of the prestigious Association of American Universities for North American research institutions. UVA is regarded as the state's flagship research university by the College Board, and is classified as "Very High Research Activity" in the Carnegie Classification.