premise: Roberta has visited Spring Green, Saugus, Franklin, Hammond, Brownsville, Silverton, Tarpon Springs, Towson, Irvington, Bangor, Bastrop, Vallejo, Central City, Bound Brook, Adrian, Topeka, Neosho, Bridgeport, Cairo, Elmira, Carbondale, Delta, North Haven, Branson, Magnolia, Napa and Maryville
hypothesis: Roberta has visited more than twenty-six places