At present, it is not clear what evidence the President may rely on to be satisfied that the Prime Minister has ceased to command the confidence of a majority of MPs, as the Singapore courts have not yet had to decide the issue. In the Sarawak case of "Stephen Kalong Ningkan v. Tun Abang Haji Openg", decided on provisions similar to those in the Singapore Constitution, the court found that the phrase "ceased to command the confidence of a majority of the Members of Parliament" was a term of art which had to be signified by a formal vote of no confidence taken by the legislature. In contrast, a Sabah court held in "Datuk Amir Kahar v. Tun Mohd Said bin Keruak, Yang di-Pertua Negeri Sabah" that loss of confidence could be assessed on the basis of evidence other than a legislative vote. This might include, for instance, media reports or letters addressed to the President.