  Literal movement grammars (LMGs) provide a general account of extraposition
phenomena through an attribute mechanism allowing top-down displacement of
syntactical information. LMGs provide a simple and efficient treatment of
complex linguistic phenomena such as cross-serial dependencies in German and
Dutch---separating the treatment of natural language into a parsing phase
closely resembling traditional context-free treatment, and a disambiguation
phase which can be carried out using matching, as opposed to full unification
employed in most current grammar formalisms of linguistical relevance.

Computation and Language;Computation and Language