381-0212 is a postalcode and its consensus geometry is derived from gn.
{"gn:adm1_code":"","gn:adm2_name":"Kamitakaigun'Obusemachi","mz:is_ceased":0,"geom:latitude":36.713,"gn:name":"Yoshijima","wof:name":"381-0212","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":"102191569","country_id":"85632429","locality_id":102031509,"postalcode_id":538369761,"region_id":85672749}],"mz:is_deprecated":0,"geom:area":0,"geom:longitude":138.2923,"wof:id":538369761,"counts:concordances_total":1,"geom:type":"Point","wof:lastmodified":1474577575,"wof:belongsto":["102191569",102031509,"85632429",85672749],"gn:accuracy":"","gn:adm1_name":"Naganoken","wof:concordances":{"gp:id":"26256359"},"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":"28432833","wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"JP","counts:names_languages":0,"geom:bbox":"138.2923,36.713,138.2923,36.713","gn:adm2_code":"","wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"33ca1f7ec41fa2b8dcf2661d785c780b","wof:parent_id":102031509,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"edtf:cessation":"uuuu"}