human
What is the name of the comic strip that United Features used as characters?
assistant
United Features used their comic strip features as characters in their comic books. The comic strip features included "Li'l Abner", "Terry and the Pirates", "Little Orphan Annie", "Prince Valiant", "Dick Tracy", "Gasoline Alley", "Terry and the Pirates", "Little Orphan Annie", "Prince Valiant", "Dick Tracy", "Gasoline Alley", "Terry and the Pirates", "Little Orphan Annie", "Prince Valiant", "Dick Tracy", "Gasoline Alley