Page "Lexical functional grammar" Paragraph 0

Lexical functional grammar ( LFG ) is a grammar framework in theoretical linguistics, a variety of generative grammar.

It is a type of phrase structure grammar, as opposed to a dependency grammar.

The development of the theory was initiated by Joan Bresnan and Ronald Kaplan in the 1970s, in reaction to the direction research in the area of transformational grammar had begun to take.

It mainly focuses on syntax, including its relation with morphology and semantics.

There has been little LFG work on phonology ( although ideas from optimality theory have recently been popular in LFG research ).