Have to consider usage of SUMO now that Ive got location info out of Lewis. But before this want to see how long it takes to define entities for another concept, geoFeatures or Commerce. This should also reinforce the validity or not of what Ive done to date. This may take me into keyword extraction (eg KEA). Still wonder of ML and/or NLP would be any less effort. In any case, building up a range of gazeteers at least.