Ah, fun with grammar ;)  Dutch comedian Kees Torn came up with a (Dutch) sentence, repeating one word 16 times in a row: "Als er bij het drop (waar bergen bergen bergen bergen bergen) Bergen bergen bergen bergen bergen bergen, bergen bergen bergen bergen bergen." (<a href="http://www.youtube.com/watch?v=eHnpjsR5q6g" rel="nofollow">http://www.youtube.com/watch?v=eHnpjsR5q6g</a>)