UNION BASE PREFIX SELECT DISTINCT FROM NAMED OPTIONAL FILTER GRAPH WHERE ORDER BY ASC DESC LIMIT OFFSET STR LANG LANGMATCHES DATATYPE isIRI isURI isBLANK isLITERAL BOUND REGEX TRUE FALSE A MINUS PLUS DOUBLE_AMPERSAND DOUBLE_PIPE BANG DOUBLE_HAT COMMA QUESTION_MARK DOLLAR FORWARDSLASH LEFT_PAREN RIGHT_PAREN LEFT_SQUARE RIGHT_SQUARE EQUALITY_OP NOT_EQUAL LESS_THAN GREATER_THAN LESS_THAN_EQUAL GREATER_THAN_EQUAL SEMICOLON LEFT_CURLY RIGHT_CURLY