premise: Tracey has visited Wellsburg, Indiana, Summit, Twin Falls, San Simeon, Dunkirk, Watts, Pocatello, Kilgore, Grants Pass, Ossining, Perth Amboy, Vancouver, Washington, Streator, Rockland, Hartford, Milwaukee, Essex, Genoa, Keyser, Palm Bay, Pittsburg, Bellevue, Newport Beach and Calumet City
hypothesis: Tracey has visited more than thirty places