diff --git a/aufgabe2/resources/world_data_sheet.xslt b/aufgabe2/resources/world_data_sheet.xslt
index 9954bdb..3d1eaa1 100644
--- a/aufgabe2/resources/world_data_sheet.xslt
+++ b/aufgabe2/resources/world_data_sheet.xslt
@@ -26,76 +26,104 @@
                             <tr>
                                 <th onclick="sortTable(0)">
                                     id
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(1)">
                                     name
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(2)">
-                                    stringPerToSlash(birth_rate_per_1000)
+                                    birth rate / 1000
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(3)">
-                                    stringPerToSlash(cell_phones_per_100)
+                                    cell phones / 100
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(4)">
-                                    stringPerToSlash(children_per_woman)
+                                    children / woman
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(5)">
-                                    stringPerToSlash(electricity_consumption_per_capita)
+                                    electricity consumption / capita
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(6)">
-                                    stringPerToSlash(gdp_per_capita)
+                                    gdp / capita
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(7)">
-                                    stringPerToSlash(gdp__per__capita__growth)
+                                    gdp / capita growth
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(8)">
                                     inflation_annual
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(9)">
-                                    stringPerToSlash(internet_user_per_100)
+                                    internet user / 100
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(10)">
-                                    life_expectancy
+                                    life expectancy
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(11)">
-                                    military_expenditure_percent_of_gdp
+                                    military expenditure percent of gdp
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(12)">
-                                    gps_lat
+                                    gps lat
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                                 <th onclick="sortTable(13)">
-                                    gps_long
+                                    gps long
+                                    <!--
                                     <i class="fas fa-chevron-up"></i>&nbsp;
                                     <i class="fas fa-chevron-down"></i>
+                                    -->
                                 </th>
                             </tr>
-                        </thread>
+                        </thead>
                         <tbody>
                             <xsl:for-each select="Countries/Country">
                                 <tr>