--- a/ttml10/spec/ttaf1-dfxp.xml	Tue May 07 23:24:48 2013 -0600
+++ b/ttml10/spec/ttaf1-dfxp.xml	Tue May 07 23:31:36 2013 -0600
@@ -9543,9 +9543,9 @@
 expression.
 </p>
 <note role="clarification">
-<p>Support for <code>#length-positive</code> does not, by itself, imply support for
-<code>#length-negative</code> or
-<code>#length-positive</code> features.</p>
+<p>Support for <code>#length-integer</code> does not, by itself, imply support for
+<code>#length-positive</code> or
+<code>#length-negative</code> features.</p>
 </note>
 </div3>
 <div3 id="feature-length-negative">
@@ -9562,7 +9562,7 @@
 expression.
 </p>
 <note role="clarification">
-<p>Support for <code>#length-positive</code> does not, by itself, imply support for
+<p>Support for <code>#length-negative</code> does not, by itself, imply support for
 <code>#length-integer</code> or
 <code>#length-real</code> features.</p>
 </note>
@@ -9657,8 +9657,8 @@
 </note>
 <note role="clarification">
 <p>Support for <code>#length-real</code> does not, by itself, imply support for
-<code>#length-negative</code> or
-<code>#length-positive</code> features.</p>
+<code>#length-positive</code> or
+<code>#length-negative</code> features.</p>
 </note>
 </div3>
 <div3 id="feature-lineBreak-uax14">