The concept of valency is now widely acknowledged in the study of syntax, even most phrase structures grammars acknowledging the valency of predicates.
22.
Phrase structure grammars view both finite and nonfinite verb phrases as constituent phrases and, consequently, do not draw any key distinction between them.
23.
Parse trees and / or derivation trees are encountered in the study of phrase structure grammars such as context-free grammars or linear grammars.
24.
Parse trees are usually constructed based on either the constituency relation of constituency grammars ( phrase structure grammars ) or the dependency relation of dependency grammars.
25.
The introduction of BPS has moved the Chomskyan tradition toward the dependency grammar tradition, which operates with significantly less structure than most phrase structure grammars.
26.
The main non-transformational syntactic frameworks include head-driven phrase structure grammar, lexical-functional grammar, categorial grammar, and simpler syntax.
27.
The tree on the left is of the constituency-based, phrase structure grammar, and the tree on the right is of the dependency grammar.
28.
The phrase structure grammar trees are the a-trees on the left; they are similar to the trees produced in the government and binding framework.
29.
This is true of Head-Driven Phrase Structure Grammar ( HPSG ), Lexical Functional Grammar ( LFG ), and dependency grammars ( DGs ).
30.
The phrase structure grammar trees are the a-trees on the left, and the dependency grammar trees are the b-trees on the right.
