I'm sorry for the late reply! "sitelabels" was a custom RdfQuery based
on direct uri:s per label (which I used for site-specific labels).
An example of it in an older version of the OortPub tutorial created it like:
from oort.util.queries import make_label_query
labels = make_label_query("urn:example.org:site:label:",
'noderelations', 'topicrelations')
However, I believe this use was quite idiomatic, and I wouldn't
recommend it generally. It's probably better to think of descriptive
labels either as part of some domain-specific resource, or use
something mechanical (e.g. how Django does I18N), rather than these
"one-off"-resources.
Best regards,
Niklas