As Tetum did not have any official recognition or support under either Portuguese or Indonesian rule, it is only recently that a standardised orthography has been established by the National Institute of Linguistics (INL). The standard orthography devised by the institute was declared official by Government Decree 1/2004 of 14 April 2004. However, there are still widespread variations in spelling, one example being the word "bainhira" or "when", which has also been written as "bain-hira", "wainhira", "waihira", "uaihira". The use of "w" or "u" is a reflection of the pronunciation in some rural dialects of "Tetun-Terik".