diff --git a/04 - Array Cardio Day 1/index-START.html b/04 - Array Cardio Day 1/index-START.html
index 0dcfd00f40..c46f3622f5 100644
--- a/04 - Array Cardio Day 1/index-START.html	
+++ b/04 - Array Cardio Day 1/index-START.html	
@@ -60,7 +60,11 @@
     // 8. Reduce Exercise
     // Sum up the instances of each of these
     const data = ['car', 'car', 'truck', 'truck', 'bike', 'walk', 'car', 'van', 'bike', 'walk', 'car', 'van', 'car', 'truck' ];
-
+<!-- practice commit 1 -->
+//    const transportation = data.reduce(function(obj, item) {
+//      if (!obj[item]) { 
+//        obj[item] = 0;
+//      }
   </script>
 </body>
 </html>