                                            "MEMO" "MEMO:" "METHOD"
                                            "SYNTAX"
                                            "PREDICATE" "PRIMITIVE"
-                                           "STRUCT" "TAG" "TUPLE"
+                                           "SINGLETONS"
+                                           "STRUCT" "SYMBOLS" "TAG" "TUPLE"
                                            "TYPED" "TYPED:"
                                            "UNIFORM-TUPLE"
                                            "UNION-STRUCT" "UNION"
-                                           "VERTEX-FORMAT"))
+                                           "VARIANT" "VERTEX-FORMAT"))
 
 (defconst fuel-syntax--no-indent-def-starts '("ARTICLE"
                                               "HELP"
-                                              "SINGLETONS"
-                                              "SPECIALIZED-ARRAYS"
-                                              "SYMBOLS"
-                                              "VARS"))
+                                              "SPECIALIZED-ARRAYS"))
 
 (defconst fuel-syntax--indent-def-start-regex
   (format "^\\(%s:\\)\\( \\|\n\\)" (regexp-opt fuel-syntax--indent-def-starts)))

                "IN:" "INSTANCE:"
                "LIBRARY:"
                "MAIN:" "MATH:" "MIXIN:"
                "OCT:"
                "POSTPONE:" "PRIVATE>" "<PRIVATE"
                "QUALIFIED-WITH:" "QUALIFIED:"

    "LIBRARY:"
    "M:" "M::" "MACRO:" "MACRO::" "MAIN:" "MATH:"
    "MEMO:" "MEMO:" "METHOD:" "MIXIN:"
    "NAN:"
    "OCT:"
    "POSTPONE:" "PREDICATE:" "PRIMITIVE:" "PRIVATE>" "PROVIDE:"
    "QUALIFIED-WITH:" "QUALIFIED:"
