diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -77,3 +77,8 @@
 
 * Sixth version revised C. Some documentation improvements. Fixed issues with being not compiled because of 2 doc-style comments
 (thanks to: Jonathan Ringer at notifications@github.com). 
+
+## 0.6.3.0 -- 2021-05-19
+
+* Sixth version revised D. Added Read and added / changed Show instances to the data types in the SegmentRulesG data type in the
+Data.Phonetic.Languages.Syllables module. 
diff --git a/Data/Phonetic/Languages/Syllables.hs b/Data/Phonetic/Languages/Syllables.hs
--- a/Data/Phonetic/Languages/Syllables.hs
+++ b/Data/Phonetic/Languages/Syllables.hs
@@ -184,10 +184,7 @@
 data SegmentationInfo1 = SI {
  fieldN :: !Int8,  -- ^ Number of fields in the pattern matching that are needed to apply the segmentation rules. Not less than 1.
  predicateN :: Int8 -- ^ Number of predicates in the definition for the 'fieldN' that are needed to apply the segmentation rules.
-} deriving (Eq)
-
-instance Show SegmentationInfo1 where
-  show (SI m n) = L.intercalate " " ["SI", show m, show n]
+} deriving (Eq, Read, Show)
 
 instance PhoneticElement SegmentationInfo1 where
   readPEMaybe rs
@@ -254,13 +251,13 @@
   infoSP :: SegmentationInfo1,
   predF :: SegmentationFDP,  -- ^ The predicate to check the needed rule for segmentation.
   resF :: Int8 -- ^ The result argument to be appended to the left of the group of consonants if the 'predF' returns 'True' for its arguments. Is an argument to the 'toDLR'.
-}
+} deriving (Read, Show)
 
 data SegmentationRules1 = SR1 {
   infoS :: SegmentationInfo1, 
   lineFs :: [SegmentationLineFunction] -- ^ The list must be sorted in the appropriate order of the guards usage for the predicates.
   -- The length of the list must be equal to the ('fromEnum' . 'predicateN' . 'infoS') value.
-}  
+} deriving (Read, Show) 
 
 -- | List of the 'SegmentationRules1' sorted in the descending order by the 'fieldN' 'SegmentationInfo1' data and where the
 -- length of all the 'SegmentationPredFunction' lists of 'PRS' are equal to the 'fieldN' 'SegmentationInfo1' data by definition.
diff --git a/phonetic-languages-phonetics-basics.cabal b/phonetic-languages-phonetics-basics.cabal
--- a/phonetic-languages-phonetics-basics.cabal
+++ b/phonetic-languages-phonetics-basics.cabal
@@ -3,7 +3,7 @@
 -- http://haskell.org/cabal/users-guide/
 
 name:                phonetic-languages-phonetics-basics
-version:             0.6.2.0
+version:             0.6.3.0
 synopsis:            A library for working with generalized phonetic languages usage.
 description:         There already exists a Ukrainian implementation for the phonetic languages approach published at: https://hackage.haskell.org/package/phonetic-languages-simplified-examples-array. It is optimized for the Ukrainian only and needs to be rewritten for every new language mostly from scratch using it as a template. To avoid this boilerplate, this one is provided. It can be used for different languages and even for music or other fields. Now it combines the functionality of the @r-glpk-phonetic-languages-ukrainian-durations@ and @phonetic-languages-ukrainian-array@ and some dependencies of the mentioned one.
 homepage:            https://hackage.haskell.org/package/phonetic-languages-phonetics-basics