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By contrast, generative theories generally provide performance-based explanations for the oddness of center embedding sentences like one in (2). According to such explanations, the grammar of English could in principle generate such sentences, but doing so in practice is so taxing on working memory that the sentence ends up being unparsable ...
The language generated by a grammar is the set of all strings of terminal symbols that can be derived, by repeated rule applications, from some particular nonterminal symbol ("start symbol"). Nonterminal symbols are used during the derivation process, but do not appear in its final result string.
The deep structure represents a sentence's core semantic relations and is mapped onto the surface structure, which follows the sentence's phonological very closely, via transformations. Deep structures are generated by phrase structure grammars using rewrite rules .
Beginning with the sentence symbol S, and applying the phrase structure rules successively, finally applying replacement rules to substitute actual words for the abstract symbols, it is possible to generate many proper sentences of English (or whichever language the rules are specified for).
LangChain for instance utilizes sentence transformers for purposes of indexing documents. In particular, an indexing is generated by generating embeddings for chunks of documents and storing (document chunk, embedding) tuples. Then given a query in natural language, the embedding for the query can be generated.
Now the sentence she eats a fish with a fork is analyzed using the CYK algorithm. In the following table, in P [ i , j , k ] {\displaystyle P[i,j,k]} , i is the number of the row (starting at the bottom at 1), and j is the number of the column (starting at the left at 1).
The language generated by the grammar is defined to be the set of all strings without any nonterminal symbols that can be generated from the string consisting of a single start symbol by (possibly repeated) application of its rules in whatever way possible.
Both sentences have the same structure, and both are grammatically well-formed. (1) Colorless green ideas sleep furiously. (Chomsky 1957: 17) (2) Harmless young children sleep quietly. Sentence (1) is grammatical yet infelicitous, because the pragmatics of the verb 'sleep' cannot be expressed as an action carried out in a furious manner. Hence ...