6671GM is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469689900,"geom:latitude":51.9237,"wof:name":"6671GM","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633337,"localadmin_id":404474651,"locality_id":101809867,"postalcode_id":891163033,"region_id":85687043}],"mz:is_deprecated":0,"geom:area":0,"geom:longitude":5.709802,"wof:id":891163033,"geom:type":"Polygon","wof:lastmodified":1469689900,"clustr:alpha":0.05,"wof:belongsto":[85687043,102191581,404474651,85633337,101809867],"mz:is_clustr":1,"wof:repo":"whosonfirst-data-postalcode-nl","src:geom":"oa","wof:country":"NL","counts:names_preferred":0,"wof:tags":[],"counts:names_variant":0,"wof:breaches":[],"edtf:inception":"uuuu","iso:country":"NL","counts:names_languages":0,"geom:bbox":"5.70911836624,51.923625946,5.71048545837,51.923789978","clustr:count":24,"clustr:area":64.01,"clustr:density":0.37,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"008a13f4ddfe3a378b05a7f09c6a4b8a","wof:parent_id":101809867,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":0.17,"edtf:cessation":"uuuu"}