sentences:  Pulau Senang is best known in the history of Singapore as the location of a former experimental offshore penal settlement that failed after only three years when an infamous riot against the small unit of prison authority (no more than 10) broke out in 1963, resulting in the death of three officers, including the overall prison-chief.In Malay, Pulau Senang literally translates as the "Island of Ease".In 1960, an experimental-type offshore penal colony was established on Pulau Senang by the Singapore government.