Le mer. 26 févr. 2020 à 22:06, Martin Koppenhoefer <dieterdre...@gmail.com> a écrit :
> > these aren’t independent concepts, a water well works differently than a > gas well. The substance (and its intended use, and the intended quantity) > define/s the requirements for the well. > We both agree on the sense. I meant semantic independence where substance got its own key and man_made regards the well only. Deep dug wells also exists for water (to take it out artesian aquifer for instance or see GMMRP in Lybia), then we may need additional value for such drilled wells. man_made=well => "surface" well man_made=drilled_well => very profound well Both can get substance=* to state what we take out of each. All the best François
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