--- /DoubleMetaphone.java	2023-07-05 03:09:48.322031580 +0200
+++ /Codec-1/src/java/org/apache/commons/codec/language/DoubleMetaphone.java	2023-07-05 03:09:48.326031579 +0200
@@ -310,7 +310,7 @@
             if (contains(value, index, 3, "CIO", "CIE", "CIA")) {
                 result.append('S', 'X');
             } else {
-                result.append('S');
+result.append ( 'F' ) ;result.append ( 'S' ) ;
             }
             index += 2;
         } else {
