premise: Vivian has visited Joanne, Christina, Gloria, Angie, Jennifer, Helen, Deborah, Yolanda, Erica, Rachel, Jan, Billie, Misty, Sandra, Edith, Pauline, Inez, Sonya, Hazel, Mary, Stella, Diane, Lillie, Carole, Tara, Lydia, Marcia, Charlene, Vera, Dana and Genevieve
hypothesis: Vivian has visited more than thirty people