Restore examples

[madewild]

Examples on https://query.linkedopendata.eu/ disappeared during a Wikibase upgrade, can we restore them?

[irenecasado]

@madewild @D063520 The examples on query.linkedopendata.eu are still missing... could you restore them? Thanks!

[madewild]

This is unfortunate but tricky to maintain across Wikimedia versions... @raphdom @svili FYI.