diff --git a/dmlex-v1.0/specification/core/objectTypes/lexicographicResource.xml b/dmlex-v1.0/specification/core/objectTypes/lexicographicResource.xml
index ce22a70..26a0035 100644
--- a/dmlex-v1.0/specification/core/objectTypes/lexicographicResource.xml
+++ b/dmlex-v1.0/specification/core/objectTypes/lexicographicResource.xml
@@ -96,7 +96,8 @@
   <example>
     <title>RDF</title>
     <programlisting>
-@prefix dmlex: &lt;https://docs.oasis-open.org/lexidma/dmlex/v1.0/schemas/RDF/dmlex.ttl#&gt; .
+@prefix dmlex: 
+ &lt;https://docs.oasis-open.org/lexidma/dmlex/v1.0/schemas/RDF/dmlex.ttl#&gt; .
 
 &lt;#id&gt; a dmlex:LexicographicResource ;
   dmlex:title "..." ;
diff --git a/dmlex-v1.0/specification/examples/examples/build_source.py b/dmlex-v1.0/specification/examples/examples/build_source.py
index 0eb97aa..9f54edf 100644
--- a/dmlex-v1.0/specification/examples/examples/build_source.py
+++ b/dmlex-v1.0/specification/examples/examples/build_source.py
@@ -6,8 +6,8 @@
 for f in glob("source/*.xml"):
     if f.endswith(".xml.xml") or f.endswith(".rdf.xml") or f.endswith(".json.xml"):
         continue
-    with open(f) as inf:
-        with open(f + ".xml", "w") as outf:
+    with open(f, encoding="utf-8") as inf:
+        with open(f + ".xml", "w", encoding="utf-8") as outf:
             outf.write("<!-- This example is automatically generated. DO NOT EDIT -->\n")
             outf.write("<programlisting>\n")
             for line in inf.readlines():
@@ -19,8 +19,8 @@
             outf.write("</programlisting>\n")
 
 for f in glob("source/*.rdf"):
-    with open(f) as inf:
-        with open(f + ".xml", "w") as outf:
+    with open(f, encoding="utf-8") as inf:
+        with open(f + ".xml", "w", encoding="utf-8") as outf:
             n = 1
             outf.write("<!-- This example is automatically generated. DO NOT EDIT -->\n")
             outf.write("<programlisting>\n")
@@ -34,8 +34,8 @@
             outf.write("</programlisting>\n")
 
 for f in glob("source/*.json"):
-    with open(f) as inf:
-        with open(f + ".xml", "w") as outf:
+    with open(f, encoding="utf-8") as inf:
+        with open(f + ".xml", "w", encoding="utf-8") as outf:
             outf.write("<!-- This example is automatically generated. DO NOT EDIT -->\n")
             outf.write("<programlisting>\n")
             for line in inf.readlines():
diff --git a/dmlex-v1.0/specification/examples/examples/source/8.rdf.xml b/dmlex-v1.0/specification/examples/examples/source/8.rdf.xml
index 6ddbe59..e9d347c 100644
--- a/dmlex-v1.0/specification/examples/examples/source/8.rdf.xml
+++ b/dmlex-v1.0/specification/examples/examples/source/8.rdf.xml
@@ -8,7 +8,7 @@ ex:doctor-n-1 a dmlex:Sense;
   dmlex:headwordTranslation [ a dmlex:HeadwordTranslation;
       dmlex:text "Ärztin";
       dmlex:listingOrder "2"^^xsd:unsignedInt;
-      dmlex:langCode "de"
+      dmlex:langCode "de" ;
       dmlex:partOfSpeech [ 
           dmlex:tag "n-fem";
           dmlex:listingOrder "1"^^xsd:unsignedInt ] ],