Part (group of entries)
Group e entries together into letter sets and indicate essays in A-Z content using parts.
//part/@role
Illustrative example of A-Z parts and entries
<part role="A">
<e id="acref-9780199264797-e-1" doi="10.1093/acref/9780199264797.013.001"><headwordGroup>
<headword>abandonment</headword>
</headwordGroup>
</e>
<e id="acref-9780199264797-e-2" doi="10.1093/acref/9780199264797.013.002"><headwordGroup>
<headword>abduction</headword>
</headwordGroup>
</e>
</part>
<part>
<e id="acref-9780199264797-e-195" doi="10.1093/acref/9780199264797.013.195"><headwordGroup>
<headword>Babbage-Chambers paradox</headword>
</headwordGroup>
</e>
</part>