for citizens, as it does the freedom of speech. In practice, however, there are strict regulations on religious practice and speech. Five state religions are officially recognized: Buddhism, Catholicism, Daoism, Islam, and Protestantism; faiths outside of these are illegal, although some are tolerated to varying degrees. The Church of Jesus Christ of Latter-day Saints, for instance, is permitted to maintain a small number of places of worship for expatriates, but is forbidden from preaching or proselytizing to Chinese citizens, as are all foreigners. Foreigners caught proselytizing have been arrested and expelled from the country. A number of religious texts, publications, and materials are banned or have their distributions artificially limited in the PRC, and information concerning the treatment of some religious groups is also tightly controlled. Under Chinese law, a minor is forbidden to receive a religious education of any kind. The Falun Gong is subject to suppression in China, and virtually all religious texts, publications, and websites relating to the group have been banned, along with information on the imprisonment or torture of followers. Christian Bibles are allowed to be printed in China but only in limited numbers and through a single press. Their sale is also restricted to officially sanctioned churches, with online sales restricted since at least April 2018. The Chinese government has fined churches for possession of unauthorized editions of the Bible. Other Christian literature is also restricted; in January 2016, five people were arrested for simply "buying and selling officially forbidden Christian devotionals". They were sentenced to 3–7 years in jail. In 1989, China banned a book titled《性风俗》Xing Fengsu ("Sexual Customs") which insulted Islam and placed its authors under arrest after protests in Lanzhou and Beijing by Chinese Hui Muslims, during which the Chinese police provided protection to the Hui Muslim protesters, and the Chinese government organized public burnings of the book. The Chinese government assisted them and gave into their demands because Hui do not have a separatist movement, unlike the Uyghurs. A collection of brain teasers published in Sichuan in 1993 caused similar effects, and the three editors of the book were sentenced to 2–5 years. Hui Muslim protesters who violently rioted by vandalizing property during the protests against the book were let off by the Chinese government and went unpunished while Uyghur protesters were imprisoned. In 2007, anticipating the coming "Year of the Pig" in the Chinese calendar, depictions of pigs were