Literature of Singapore, or "SingLit", comprises a collection of literary works by Singaporeans written chiefly in the country's four official languages: English, Malay, Mandarin, and Tamil. Singapore is increasingly regarded as having four sub-literatures instead of one. Many significant works have been translated and showcased in publications such as the literary journal ''Singa'', published in the 1980s and 1990s with editors including Edwin Thumboo and Koh Buck Song, as well as in multilingual anthologies such as ''Rhythms: A Singaporean Millennial Anthology Of Poetry'' (2000), in which the poems were all translated three times each. A number of Singaporean writers such as Tan Swie Hian and Kuo Pao Kun have contributed work in more than one language.