-1:1:
-unexpected <colon1> at 1:1-2:14
-expecting <about>, <artwork>, <b>, <br>, <code>, <del>, <eref>, <figure>, <i>, <index>, <iref>, <note>, <ol>, <para>, <q>, <quote>, <ref>, <references>, <rref>, <sc>, <section>, <sub>, <sup>, <toc>, <tof>, <u>, <ul>, comment, none, or text
+
+<?xml-model type="application/relax-ng-compact-syntax"
+ href="./schema/dtc.rnc"?>
+
+<document>
+ <about>
+ </about>
+ <p><code><code></code></code></p>
+</document>
\ No newline at end of file