premise: Rosemary has visited only twenty-one places or only thirteen people
hypothesis: Rosemary has visited Bryan, Stamford, Baker City, Newburgh, West Seneca, Troy, Mackinaw City, Frederick, Miami, Cedar Falls, Hugo, Wabash, Monroeville, Hillsborough, Lincoln, Sweetwater, Hammondsport, Summersville, Kansas, Lander, Ottumwa and Burlington