PREFIX : <http://example.org/>
PREFIX xsd: <http://www.w3.org/2001/XMLSchema#>
SELECT
	?s
	?str
	(STRAFTER(?str,"b") AS ?ab)
	(STRAFTER(?str,"ab") AS ?aab)
	(STRAFTER(?str,"b"@cy) AS ?abcy)
	(STRAFTER(?str,"") AS ?a)
	(STRAFTER(?str,""@en) AS ?aen)
	(STRAFTER(?str,"b"^^xsd:string) AS ?abx)
	(STRAFTER(?str,"xyz"^^xsd:string) AS ?axyzx)
WHERE {
	?s :str ?str
}
