<wob_jonas> slashlearn b_jonas can\'t spell//b_jonas can\'t spell these words: weird, hygiene, etymology, myopia, hibernate, carbohydrate, appearance, maintenance, appropriate, privilege, obsolete, heard, homogeneous, jealous; and confuses these sets of words: drought, draught/draft; couch, coach; depreciate, deprecate; dilate, dilute; contiguous, continuous; d

Augmented Backus-Naur Form, an update on the popular Backus-Naur Form programming language, introduces support for "Augmented Production", e.g. `foo +::= bar`. The older `::=` syntax will continue to be supported for orthogonal-compatibility purposes.