--- a/relpipe-data/classic-example.xml	Sun Nov 25 19:58:06 2018 +0100
+++ b/relpipe-data/classic-example.xml	Mon Nov 26 12:15:40 2018 +0100
@@ -42,8 +42,8 @@
 WHITE]]></pre>
 
 		<p>
-			So we have a list of colors of our dogs printed upper-case. 
-			In case we have several dogs of same colors, we could avoid duplicates simply by adding <code>| sort -u</code> in the pipeline (after the <code>cut</code> part).
+			So we have a list of colors of our dogs printed in upper-case. 
+			In case we have several dogs of same color, we could avoid duplicates simply by adding <code>| sort -u</code> in the pipeline (after the <code>cut</code> part).
 		</p>
 
 		<h2>The great parts</h2>
@@ -59,6 +59,12 @@
 			And we do it well without being distracted by any low-level issues.
 		</p>
 		
+		<p>
+			Each program used in the pipeline can be written in different programming language and they will work together.
+			Tools written in C, C++, Java, Lisp, Perl, Python, Rust or any other language can be combined together.
+			Thus optimal language can be used for each task.
+		</p>
+		
 		<h2>The pitfalls</h2>
 		
 		<p>