It turns out that UK Parliamentary constituencies are not well
represented in Wikidata; for example many lack details of adjoining
constituencies, coordinates, and shape files.
A query highlighting the missing data, and a tool for finding
neighbouring constituencies, can be found at:
https://www.wikidata.org/wiki/Wikidata:WikiProject_British_Politicians/Cons…
with discussion on its talk page.
If you can help with improving these items, please do!
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Andy Mabbett
@pigsonthewing
http://pigsonthewing.org.uk