DEF_LOOKUP "V252" PROCESS_BASE PROCESS_MARKS ALL DIRECTION LTR
IN_CONTEXT
 LEFT GROUP "V252GLYPHS"
END_CONTEXT
AS_SUBSTITUTION
SUB GLYPH "uni0F71"
WITH GLYPH "uni0F71.alt252"
END_SUB
SUB GLYPH "uni0F74"
WITH GLYPH "uni0F74.alt252"
END_SUB
SUB GLYPH "uni0F75"
WITH GLYPH "uni0F75.alt252"
END_SUB
END_SUBSTITUTION