Background
Import & Export
Import Elements
Options
Examples
Basic Examples
See Also
GraphStore`
Wolfram Language code: Wolfram Language code: Wolfram Language code: Wolfram Language code: Wolfram Language code:
TriG (.trig)
Background
-
- MIME type: application/trig.
- Text-based format for RDF datasets.
- TriG is an extension of Turtle.
- TriG is specified at https://www.w3.org/TR/trig/.
Import Elements
- General Import elements:
-
"Elements" list of elements and options available in this file"Rules" full list of rules for each element and option"Options" list of rules for options, properties and settings
- Data representation elements:
-
"Data" an RDFStore"Base" base IRI used to resolve relative IRIs"Prefixes" association of prefixes to namespace IRIs
Options
- Import options:
-
"Base" Automatic base IRI used to resolve relative IRIs
- The value of "Base" is only used if the file does not specify a base IRI.
- "Base" can take the following values:
-
Automatic the file name of the imported fileNone no base IRI
- Export options:
-
"Base" None produce IRIs relative to this base"Prefixes" <||> produce prefixed names using these prefixes
- A prefixed name has the form pre:local. The corresponding IRI is obtained by joining the namespace IRI associated with the prefix pre with the local part local.
- "Base" and "Prefixes" can be used to shorten an exported file. These options do not change the meaning of the RDFStore that the file represents.
Examples
Basic Examples (1)
Needs["GraphStore`"]Import TriG data:
store = ImportString["
prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#>
prefix ex: <http://example.org/>
ex:fruitGraph rdfs:label \"fruit graph\".
ex:fruitGraph rdfs:comment \"data about fruits\".
ex:fruitGraph {
ex:banana rdfs:label \"banana\".
ex:banana a ex:Fruit.
ex:banana ex:color \"yellow\".
}", "TriG"]Export the same dataset:
ExportString[store, "TriG"]Specify prefixes to shorten IRIs:
ExportString[store, "TriG", "Prefixes" -> <|
"rdfs" -> "http://www.w3.org/2000/01/rdf-schema#",
"ex" -> "http://example.org/"
|>]Specify a base instead:
ExportString[store, "TriG",
"Base" -> "http://example.org/",
"Prefixes" -> <|"rdfs" -> "http://www.w3.org/2000/01/rdf-schema#"|>
]