520-2572 is a postalcode and its consensus geometry is derived from gn.
{"gn:adm1_code":"","gn:adm2_name":"Gamougunryuuouchou","mz:is_ceased":0,"geom:latitude":35.0893,"gn:name":"Nishigawa","wof:name":"520-2572","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":"102191569","country_id":"85632429","locality_id":102031775,"postalcode_id":538259651,"region_id":85672789}],"mz:is_deprecated":0,"geom:area":0,"geom:longitude":136.0998,"wof:id":538259651,"counts:concordances_total":1,"geom:type":"Point","wof:lastmodified":1474577389,"wof:belongsto":["102191569",102031775,"85632429",85672789],"gn:accuracy":"","gn:adm1_name":"Shigaken","wof:concordances":{"gp:id":"26273406"},"wof:repo":"whosonfirst-data-postalcode-jp","gn:adm3_name":"","src:geom":"gn","wof:country":"JP","counts:names_preferred":0,"gn:adm3_code":"","gp:parent_id":"28449499","wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"JP","counts:names_languages":0,"geom:bbox":"136.0998,35.0893,136.0998,35.0893","gn:adm2_code":"","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"5596890a2d329c09d27fb866bb4e0b41","wof:parent_id":102031775,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}