The nation's ten busiest freeways are all in the L.A. vicinity.
Of the top 20 busiest freeways in the nation, 14 are in the vicinity of L.A.
mnli hypothesis: Of the top 20 busiest freeways in the nation, 14 are in the vicinity of L.A. premise: The nation's ten busiest freeways are all in the L.A. vicinity.