GREEK CAPITAL LETTER OMEGA -->
        <td>&#x03BC;x <!-- U+03BC: GREEK SMALL LETTER MU -->
        <td>&#x03C0;x <!-- U+03C0: GREEK SMALL LETTER PI -->
        <td>&#x2002;x <!-- U+2002: EN SPACE -->
        <td>&#x2003;x <!-- U+2003: EM SPACE -->
        <td>&#x2004;x <!-- U+2004: THREE-PER-EM SPACE -->
        <td>&#x2005;x <!-- U+2005: FOUR-PER-EM SPACE -->
        <td>&#x2006;x <!-- U+2006: SIX-PER-EM SPACE -->
        <td>&#x2009;x <!-- U+2009: THIN SPACE -->
        <td>&#x200A;x <!-- U+200A: HAIR SP