UNION QNAME QNAME_NS Q_IRI_REF BLANK_NODE_LABEL VARNAME PREFIX ASTERISK DOT QUESTION_MARK DOLLAR BASE PREFIX SELECT DISTINCT FROM NAMED OPTIONAL FILTER GRAPH WHERE ORDER BY ASC DESC LIMIT OFFSET STR LANG LANGMATCHES DATATYPE isIRI isURI isLITERAL isBLANK BOUND REGEX A TRUE FALSE DOUBLE_AMPERSAND DOUBLE_PIPE BANG DOUBLE_HAT COMMA QUESTION_MARK DOLLAR FORWARDSLASH LEFT_PAREN RIGHT_PAREN LEFT_SQUARE RIGHT_SQUARE SEMICOLON INTEGER DECIMAL DOUBLE STRING_LITERAL STRING_LITERAL_LONG NIL ANON LANGTAG LEFT_CURLY RIGHT_CURLY PLUS MINUS EQUALITY_OP NOT_EQUAL LESS_THAN GREATER_THAN LESS_THAN_EQUAL GREATER_THAN_EQUAL