3971AC is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469680275,"geom:latitude":52.061051,"wof:name":"3971AC","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633337,"localadmin_id":404474547,"locality_id":101806999,"postalcode_id":890925369,"region_id":85687039}],"mz:is_deprecated":0,"geom:area":1.0E-6,"geom:longitude":5.303046,"wof:id":890925369,"geom:type":"Polygon","wof:lastmodified":1469680275,"clustr:alpha":0.05,"wof:belongsto":[85687039,102191581,404474547,85633337,101806999],"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":"5.30085039139,52.0605430603,5.30503416061,52.0614814758","clustr:count":23,"clustr:area":23.88,"clustr:density":0.96,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"bfb41dd6eb75c05a34d239e7a518827f","wof:parent_id":101806999,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":0.6,"edtf:cessation":"uuuu"}