derelict canal: waterway=derelict_canal,name=(type name here)
unnavigable river: waterway=river,boat=no,name=(type name here)
unnavigable drain: waterway=drain,boat=no,name=(type name here)
+stream: waterway=stream,boat=no,name=(type name here)
way/railway
railway: railway=rail
pub: tourism=,amenity=pub,name=(type name here),religion=,denomination=
POI/natural
-peak: point=peak
+peak: natural=peak
EOF
StringIO.open(txt) do |file|