Stream ExecuteQuery(
	string storeName,
	string queryExpression,
	string defaultGraphUri,
	Nullable<DateTime> ifNotModifiedSince = null,
	SparqlResultsFormat resultsFormat = null,
	RdfFormat graphFormat = null
)

Function ExecuteQuery ( 
	storeName As String,
	queryExpression As String,
	defaultGraphUri As String,
	Optional ifNotModifiedSince As Nullable(Of DateTime) = Nothing,
	Optional resultsFormat As SparqlResultsFormat = Nothing,
	Optional graphFormat As RdfFormat = Nothing
) As Stream

Stream^ ExecuteQuery(
	String^ storeName, 
	String^ queryExpression, 
	String^ defaultGraphUri, 
	Nullable<DateTime> ifNotModifiedSince = nullptr, 
	SparqlResultsFormat^ resultsFormat = nullptr, 
	RdfFormat^ graphFormat = nullptr
)

abstract ExecuteQuery : 
        storeName : string * 
        queryExpression : string * 
        defaultGraphUri : string * 
        ?ifNotModifiedSince : Nullable<DateTime> * 
        ?resultsFormat : SparqlResultsFormat * 
        ?graphFormat : RdfFormat 
(* Defaults:
        let _ifNotModifiedSince = defaultArg ifNotModifiedSince null
        let _resultsFormat = defaultArg resultsFormat null
        let _graphFormat = defaultArg graphFormat null
*)
-> Stream