languagesystem DFLT dflt;

markClass sukun    <anchor 261 488> @TOP_MARKS;
markClass kasratan <anchor 346 -98> @BOTTOM_MARKS;

feature test {
    position ligature lam_meem_jeem
        <anchor 625 1800> mark @TOP_MARKS    # mark above lam
        ligComponent     # start specifying marks for meem
        <anchor 376 -368> mark @BOTTOM_MARKS    # mark below meem
        ligComponent     # start specifying marks for jeem
        <anchor NULL>;   # jeem has no marks
} test;