Capsizing of use and can usually be recovered by the crew. Some types of dinghy are occasionally deliberately capsized, as capsizing and righting the vessel again can be the fastest means of draining water from the boat. Capsizing (but not necessarily turtling) is an inherent part of dinghy sailing. It is not a question of "if" but a question of "when". For those who do not want the experience, a keelboat monohull has physics on its side. But even yachts can capsize and turtle in extraordinary conditions, so design considerations are important. Such events can overcome skill and experience; boats need
Referring expression generation In REG they are used to evaluate the "realization" part of algorithms. The "content selection" part of REG on the other hand requires a corpus that contains the properties of all domain objects as well as the properties used in references. Typically those fully "semantically transparent" created in experiments using simple and controlled settings. These experimental corpora once again can be separated into "General-Purpose Corpora" that were collected for another purpose but have been analysed for referring expressions and "Dedicated Corpora" that focus specifically on referring expressions. Examples of General-Purpose Corpora are the Pear Stories, the Map Task corpus or