[MSDN Library April 2000] Lookup Type 4: MarkToBase Attachment Positioning Subtable (100%)
MSDN Library - April 2000 > Specifications > Applications > TrueType Open Font > 4. The Glyph Positioning Table (GPOS)
[MSDN Library April 2000] Lookup Type 6: MarkToMark Attachment Positioning Subtable (98.2456140350877%)
MSDN Library - April 2000 > Specifications > Applications > TrueType Open Font > 4. The Glyph Positioning Table (GPOS)
[MSDN Library April 2000] Lookup Type 5: MarkToLigature Attachment Positioning Subtable (97.1311475409836%)
MSDN Library - April 2000 > Specifications > Applications > TrueType Open Font > 4. The Glyph Positioning Table (GPOS)
[MSDN Library April 2000] Lookup Type 3: Cursive Attachment Positioning Subtable (96.0526315789474%)
MSDN Library - April 2000 > Specifications > Applications > TrueType Open Font > 4. The Glyph Positioning Table (GPOS)
[MSDN Library April 2000] Lookup Type 2: Pair Adjustment Positioning Subtable (93.4210526315789%)
MSDN Library - April 2000 > Specifications > Applications > TrueType Open Font > 4. The Glyph Positioning Table (GPOS)