Some books and stories are built around a proverb. Some of Tolkien's books have been analyzed as having "governing proverbs" where "the acton of a book turns on or fulfills a proverbial saying." Some stories have been written with a proverb overtly as an opening, such as "A stitch in time saves nine" at the beginning of "Kitty's Class Day", one of Louisa May Alcott's "Proverb Stories". Other times, a proverb appears at the end of a story, summing up a moral to the story, frequently found in Aesop's Fables, such as "Heaven helps those who help themselves" from "Hercules and the Wagoner". In a novel by the Ivorian novelist Ahmadou Kourouma, "proverbs are used to conclude each chapter". Proverbs have also been used strategically by poets. Sometimes proverbs (or portions of them or anti-proverbs) are used for titles, such as "A bird in the bush" by Lord Kennet and his stepson Peter Scott and "The blind leading the blind" by Lisa Mueller. Sometimes, multiple proverbs are important parts of poems, such as Paul Muldoon's "Symposium", which begins "You can lead a horse to water but you can't make it hold its nose to the grindstone and hunt with the hounds. Every dog has a stitch in time..." In Finnish there are proverb poems written hundreds of years ago. The Turkish poet Refiki wrote an entire poem by stringing proverbs together, which has been translated into English poetically yielding such verses as "Be watchful and be wary, / But seldom grant a boon; / The man who calls the piper / Will also call the tune." Eliza Griswold also created a poem by stringing proverbs together, Libyan proverbs translated into English. Because proverbs are familiar and often pointed, they have been used by a number of hip-hop poets. This has been true not only in the USA, birthplace of hip-hop, but also in Nigeria. Since Nigeria is so multilingual, hip-hop poets there use proverbs from various languages, mixing them in as it fits their need, sometimes translating the original. For example, "They forget say ogbon ju agbaralo They forget that wisdom is greater than power"  Some authors have bent and twisted proverbs, creating anti-proverbs, for a variety of literary effects. For example, in the Harry Potter novels, J. K. Rowling reshapes a standard English proverb into "It's no good crying over spilt potion" and Dumbledore advises Harry not to "count your owls before they are delivered".