> U+200E LEFT-TO-RIGHT MARK > U+200F RIGHT-TO-LEFT MARK > &lre; U+202A LEFT-TO-RIGHT EMBEDDING > &rle; U+202B RIGHT-TO-LEFT EMBEDDING > &pdf; U+202C POP DIRECTIONAL FORMATTING > &lro; U+202D LEFT-TO-RIGHT OVERRIDE > &rlo; U+202E RIGHT-TO-LEFT OVERRIDE > > Only the first two are defined in [HTML4]; the others are > replaced by the 'dir' attribute and the <bdo> element.