diff --git a/ChangeLog.md b/ChangeLog.md
--- a/ChangeLog.md
+++ b/ChangeLog.md
@@ -100,3 +100,8 @@
 ## 0.16.2.0 -- 2020-08-24
 
 * Sixteenth version revised B. Fixed an issue with usage of the auxiliary1 function in the DobutokO.Poetry.Ukranian.PrepareText module. 
+
+## 0.16.3.0 -- 2020-08-25
+
+* Sixteenth version revised C. Fixed issues with the isConcatenated and isPreposition functions in the DobutokO.Poetry.Ukranian.PrepareText module. Some documentation 
+improvements.
diff --git a/DobutokO/Poetry/Ukrainian/PrepareText.hs b/DobutokO/Poetry/Ukrainian/PrepareText.hs
--- a/DobutokO/Poetry/Ukrainian/PrepareText.hs
+++ b/DobutokO/Poetry/Ukrainian/PrepareText.hs
@@ -9,8 +9,8 @@
 -- to obtain (to some extent) suitable for poetry or music text. 
 -- In particular, this module can be used to prepare the Ukrainian text 
 -- by applying the most needed grammar to avoid misunderstanding 
--- for the produced text. The attention is paid to the pronouns, conjunctions 
--- and particles that are most commonly connected in a significant way 
+-- for the produced text. The attention is paid to the prepositions, pronouns, conjunctions 
+-- and particles that are most commonly connected (or not) in a significant way 
 -- with the next text. 
 -- Uses the information from: 
 -- https://uk.wikipedia.org/wiki/%D0%A1%D0%BF%D0%BE%D0%BB%D1%83%D1%87%D0%BD%D0%B8%D0%BA
@@ -105,17 +105,17 @@
 
 auxiliary1 :: [String] -> [String]
 auxiliary1 (xs:ys:zs:xss) 
-  | isConcatenated ys || isPronoun ys = 
+  | isConcatenated ys || isPreposition ys = 
       auxiliary1 (xs:auxiliary1 ((ys ++ (drop 1 . jottedConv $ ' ':zs)):xss))
-  | isConcatenated xs || isPronoun xs = auxiliary1 ((xs ++ (drop 1 . jottedConv $ ' ':ys)):zs:xss)
+  | isConcatenated xs || isPreposition xs = auxiliary1 ((xs ++ (drop 1 . jottedConv $ ' ':ys)):zs:xss)
   | otherwise = xs:auxiliary1 (ys:zs:xss)
 auxiliary1 x@(xs:ys:xss) 
-  | isConcatenated xs || isPronoun xs = auxiliary1 ((xs ++ (drop 1 . jottedConv $ ' ':ys)):xss)
+  | isConcatenated xs || isPreposition xs = auxiliary1 ((xs ++ (drop 1 . jottedConv $ ' ':ys)):xss)
   | otherwise = x
 auxiliary1 xss = xss
 
-isPronoun :: String -> Bool
-isPronoun ts = 
+isPreposition :: String -> Bool
+isPreposition ts = 
   getBFst' (False, V.fromList . 
    zip ["\1030\1079", "\1041\1077\1079", "\1041\1110\1083\1103", "\1042", 
     "\1042\1110\1076", "\1044\1083\1103", "\1044\1086", "\1047", 
@@ -142,16 +142,19 @@
                          "\1089\1077\1088\1077\1076\1080", "\1091", 
                           "\1095\1077\1088\1077\1079", "\1110\1079"] $ 
                            replicate 100 True) ts 
-{-# INLINE isPronoun #-}
+{-# INLINE isPreposition #-}
 
+-- | Since the dobutokO-poetry version 0.16.3.0 the (||) operator has been changed to the (&&). 
+-- The idea is that these words are the ones that are pronouns and they \"should\" be treated 
+-- (by the author's understanding) as independent words.
 isConcatenated :: String -> Bool
 isConcatenated ts 
  | null ts = False
- | otherwise = compare (length ts) 2 /= GT && (getBFst' (True, V.fromList . 
+ | otherwise = compare (length ts) 2 /= GT && getBFst' (True, V.fromList . 
      zip ["\1028", "\1042\1080", "\1052\1080", "\1058\1080", "\1058\1110", 
        "\1062\1110", "\1071", "\1074\1080", "\1084\1080", "\1090\1080", "\1090\1110", 
-         "\1094\1110", "\1103", "\1108"] $ replicate 14 False) ts || 
-           (head ts `notElem` "\1031\1111"))
+         "\1094\1110", "\1103", "\1108"] $ replicate 14 False) ts && 
+           (head ts `notElem` "\1031\1111")
 {-# INLINE isConcatenated #-}
 
 concatenated2 :: [String] -> [String]
diff --git a/dobutokO-poetry.cabal b/dobutokO-poetry.cabal
--- a/dobutokO-poetry.cabal
+++ b/dobutokO-poetry.cabal
@@ -2,7 +2,7 @@
 -- documentation, see http://haskell.org/cabal/users-guide/
 
 name:                dobutokO-poetry
-version:             0.16.2.0
+version:             0.16.3.0
 synopsis:            Helps to order the 7 or less Ukrainian words to obtain somewhat suitable for poetry or music text
 description:         Helps to order the 7 or less Ukrainian words (or their concatenations) to obtain somewhat suitable for poetry or music text. Can be also used as a research instrument with generalized functions.