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2. File:Example derivation tree of a term from a regular tree ...

   en.wikipedia.org/wiki/File:Example_derivation...

   File:Example derivation tree of a term from a regular tree grammar.pdf. Add languages ...

3. File:A higher English grammar (IA higherenglishgra00bainrich).pdf

   en.wikipedia.org/wiki/File:A_higher_English...

   This file contains additional information, probably added from the digital camera or scanner used to create or digitize it. If the file has been modified from its original state, some details may not fully reflect the modified file.

4. Parse tree - Wikipedia

   en.wikipedia.org/wiki/Parse_tree

   A simple parse tree. A parse tree is made up of nodes and branches. [4] In the picture the parse tree is the entire structure, starting from S and ending in each of the leaf nodes (John, ball, the, hit). In a parse tree, each node is either a root node, a branch node, or a leaf node. In the above example, S is a root node, NP and VP are branch ...

5. Sentence diagram - Wikipedia

   en.wikipedia.org/wiki/Sentence_diagram

   Dependency, in contrast, is a one-to-one relation; every word in the sentence corresponds to exactly one node in the tree diagram. Both parse trees employ the convention where the category acronyms (e.g. N, NP, V, VP) are used as the labels on the nodes in the tree.

6. Generalized phrase structure grammar - Wikipedia

   en.wikipedia.org/wiki/Generalized_Phrase...

   Generalized phrase structure grammar (GPSG) is a framework for describing the syntax and semantics of natural languages. It is a type of constraint-based phrase structure grammar . Constraint based grammars are based around defining certain syntactic processes as ungrammatical for a given language and assuming everything not thus dismissed is ...

7. Treebank - Wikipedia

   en.wikipedia.org/wiki/Treebank

   This type of representation is popular because it is light on resources, and the tree structure is relatively easy to read without software tools. However, as corpora become increasingly complex, other file formats may be preferred. Alternatives include treebank-specific XML schemes, numbered indentation and various types of standoff notation.

8. Tree-adjoining grammar - Wikipedia

   en.wikipedia.org/wiki/Tree-adjoining_grammar

   Tree-adjoining grammars are somewhat similar to context-free grammars, but the elementary unit of rewriting is the tree rather than the symbol. Whereas context-free grammars have rules for rewriting symbols as strings of other symbols, tree-adjoining grammars have rules for rewriting the nodes of trees as other trees (see tree (graph theory ...

9. Ambiguous grammar - Wikipedia

   en.wikipedia.org/wiki/Ambiguous_grammar

   In computer science, an ambiguous grammar is a context-free grammar for which there exists a string that can have more than one leftmost derivation or parse tree. [ 1 ] [ 2 ] Every non-empty context-free language admits an ambiguous grammar by introducing e.g. a duplicate rule.