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  2. Context-free grammar - Wikipedia

    en.wikipedia.org/wiki/Context-free_grammar

    This allows natural language features such as agreement and reference, and programming language analogs such as the correct use and definition of identifiers, to be expressed in a natural way. E.g. we can now easily express that in English sentences, the subject and verb must agree in number. In computer science, examples of this approach ...

  3. Agreement (linguistics) - Wikipedia

    en.wikipedia.org/wiki/Agreement_(linguistics)

    Agreement based on grammatical number can occur between verb and subject, as in the case of grammatical person discussed above. In fact the two categories are often conflated within verb conjugation patterns: there are specific verb forms for first person singular, second person plural and so on.

  4. Subject–verb–object word order - Wikipedia

    en.wikipedia.org/wiki/Subjectverb–object...

    In linguistic typology, subjectverb–object (SVO) is a sentence structure where the subject comes first, the verb second, and the object third. Languages may be classified according to the dominant sequence of these elements in unmarked sentences (i.e., sentences in which an unusual word order is not used for emphasis).

  5. Parsing expression grammar - Wikipedia

    en.wikipedia.org/wiki/Parsing_expression_grammar

    In computer science, a parsing expression grammar (PEG) is a type of analytic formal grammar, i.e. it describes a formal language in terms of a set of rules for recognizing strings in the language. The formalism was introduced by Bryan Ford in 2004 [ 1 ] and is closely related to the family of top-down parsing languages introduced in the early ...

  6. Syntax - Wikipedia

    en.wikipedia.org/wiki/Syntax

    In linguistics, syntax (/ ˈ s ɪ n t æ k s / SIN-taks) [1] [2] is the study of how words and morphemes combine to form larger units such as phrases and sentences.Central concerns of syntax include word order, grammatical relations, hierarchical sentence structure (constituency), [3] agreement, the nature of crosslinguistic variation, and the relationship between form and meaning ().

  7. Nominative–accusative alignment - Wikipedia

    en.wikipedia.org/wiki/Nominative–accusative...

    An intransitive verb is associated with only one argument, a subject. The different kinds of arguments are usually represented as S, A, and O. S is the sole argument of an intransitive verb, A is the subject (or most agent-like) argument of a transitive verb, and O is the direct object (or most patient-like) argument of a

  8. Grammar - Wikipedia

    en.wikipedia.org/wiki/Grammar

    Grammar rules may concern the use of clauses, phrases, and words. The term may also refer to the study of such rules, a subject that includes phonology, morphology, and syntax, together with phonetics, semantics, and pragmatics. There are, broadly speaking, two different ways to study grammar: traditional grammar and theoretical grammar.

  9. Word order - Wikipedia

    en.wikipedia.org/wiki/Word_order

    These are all possible word orders for the subject, object, and verb in the order of most common to rarest (the examples use "she" as the subject, "loves" as the verb, and "him" as the object): SOV is the order used by the largest number of distinct languages; languages using it include Japanese , Korean , Mongolian , Turkish , the Indo-Aryan ...