<ul><li>The part ":Template:Category" of the query was not understood.Results might not be as expected.</li> <!--br--><li>The symbol ":Template:Category" was used in a place where it is not useful.</li> <!--br--><li>The part "]]" of the query was not understood.Results might not be as expected.</li> <!--br--><li>Some subquery has no valid condition.</li></ul>