Documentation:
* [[https://wiki.openstreetmap.org/wiki/FR:Overpass_API/Overpass_QL|FR:Overpass API/Overpass QL]]
* [[https://wiki.openstreetmap.org/wiki/Overpass_API/Overpass_API_by_Example#List_of... n '',i'' après
la doc https://wiki.openstreetmap.org/wiki/FR:Overpass_API/Overpass_QL#Valeur_correspon