Be more clear about removing an existing term definition.
--- a/spec/latest/json-ld-api/index.html Tue Feb 12 15:38:01 2013 -0500
+++ b/spec/latest/json-ld-api/index.html Tue Feb 12 15:42:00 2013 -0500
@@ -1102,8 +1102,8 @@
invalid value has been detected, which is an error.
</li>
<li>
- If <em>term</em> is a <tref>keyword</tref> alias in
- <tref>active context</tref>, remove it.
+ Remove any existing <tref>term definition</tref> for <em>term</em> in
+ <tref>active context</tref>.
</li>
<li>
Initialize <em>value</em> to the value associated with the key