the best course is to consider an example sentence. We will use the following example, drawn from the classic paper "Parsing with a Link Grammar" by Sleator and Temperley IS'I'93): The cat chased a snake The link grammar parse structure for this sentence is: « xp I • ss r lid • .0.--Ds +- 40-

of "the." The rules of link grammar impose additional constraints — i.e. the planarity, connectivity, ordering and exclusion metarules described in Sleator and Temperley's papers. Planarity means that links don't cross - a rule that S&T's parser enforces with absoluteness, whereas we have found it is p