JLinkGrammar is a Java port of the Carnergie Mellon University link grammar parser, a syntactic parser for English. The link grammar parser is a natural language parser based on link grammar theory. Given a sentence, the system assigns to the sentence a syntactic structure consisting of a set of labeled links connecting pairs of words. The parser also produces a "constituent" representation of a sentence (showing noun phrases, verb phrases, etc.). More information is available at: http://www.link.cs.cmu.edu/link/.

The original C version of the Link Grammar parser is licensed under a trivial variant BSD license. The JLinkGrammar source code is licensed under either the GNU Public License or the BSD license. Presumably the data files used by both the original C and this Java version of the parser are covered by the BSD style license.