The pairs that are ordered on the modelled intervals but not once the evidence is read generously. The columns are the bounds the relation is actually computed from, and the gap between them — sorted with the narrowest first, because those are the claims that fail soonest. Read the last two columns beside it: the modelled intervals are a year apart while the potters' date ranges overlap by decades. That is the whole distinction in one line, and it is why these pairs carry lado:possiblyBefore and not time:intervalBefore.
Also available as a plain file:
allen-unstable.rq.
The graph is fetched as a static file and queried in your browser with
rdflib under Pyodide — there is no endpoint, and nothing you type
leaves your machine.