The only information that appears to be correct there is the list of fare classes themselves. The table, however, is completely misleading. As an example, the table says that fare class R allows changes at a fee but no cancelations. Since the Light, Standard and Flex branding was introduced, this information is misleading at minimum and outright wrong at worst because by paying the surcharge to move upwards within these fare brands, you get the benefits of flexibility even with a fare in R class. Having a light fare could even mean there is a fare in R class that has no flexibility at all.