SPARQL Syntax Expressions (alternatively, SPARQL S-Expressions) is a

parse tree A parse tree or parsing tree or derivation tree or concrete syntax tree is an ordered, rooted tree that represents the syntactic structure of a string according to some context-free grammar. The term ''parse tree'' itself is used primarily in co ...

(a.k.a. concrete syntax) for representing SPARQL

Algebra Algebra () is one of the broad areas of mathematics. Roughly speaking, algebra is the study of mathematical symbols and the rules for manipulating these symbols in formulas; it is a unifying thread of almost all of mathematics. Elementary a ...

expressions.

Application

They have been used to apply the

BERT Bert or BERT may refer to: Persons, characters, or animals known as Bert *Bert (name), commonly an abbreviated forename and sometimes a surname *Bert, a character in the poem "Bert the Wombat" by The Wiggles; from their 1992 album Here Comes a Son ...

language model to create SPARQL queries from

natural language In neuropsychology, linguistics, and philosophy of language, a natural language or ordinary language is any language that has evolved naturally in humans through use and repetition without conscious planning or premeditation. Natural languages ...

questions.

External links

SPARQL Algebra in the W3C SPARQL Query Specification

that can also print the Algebra expressions
SPARQL Syntax Expressions translations of the DAWG test suite

References

SPARQL RDF data access {{Comp-sci-stub