LEFT MULTIMAP
PERPENDICULAR
OPEN SUBSET
OPEN SUPERSET
LEFT S-SHAPED BAG DELIMITER
RIGHT S-SHAPED BAG DELIMITER
LONG DIVISION
SQUARED LOGICAL AND
LEFT OUTER JOIN
FULL OUTER JOIN
LOZENGE DIVIDED BY HORIZONTAL RULE
MATHEMATICAL LEFT WHITE SQUARE BRACKET
MATHEMATICAL RIGHT WHITE SQUARE BRACKET
MATHEMATICAL LEFT DOUBLE ANGLE BRACKET
MATHEMATICAL LEFT WHITE TORTOISE SHELL BRACKET
MATHEMATICAL LEFT FLATTENED PARENTHESIS