<metadata name="date" brief="yes" sortkey="numeric" type="year" merge="range"
termlist="yes"/>
<metadata name="author" brief="yes" termlist="yes" merge="longest"
<metadata name="date" brief="yes" sortkey="numeric" type="year" merge="range"
termlist="yes"/>
<metadata name="author" brief="yes" termlist="yes" merge="longest"