Trained staff are supposed to interpret these short messages and sort each type of side-effect into coded groups - so that the scale of the problem, if any, can be assessed.
Yet in the dying days of his relatively short eight-year papacy, Pope Benedict XVI has been putting out new coded phrases which, upon analysis, reveal the extent of his frustration at the administrative infighting he has had to endure among mainly Italian careerist clerics inside the Vatican.
The city buses are colour-coded to instantly telegraph what type of route they ply: red buses are express, green buses run short routes between subway stations and other points.