5688KD is a postalcode and its consensus geometry is derived from oa.
{"mz:is_ceased":0,"wof:created":1469686294,"geom:latitude":51.509292,"wof:name":"5688KD","counts:names_total":0,"wof:placetype":"postalcode","mz:is_approximate":1,"wof:hierarchy":[{"continent_id":102191581,"country_id":85633337,"localadmin_id":404474407,"locality_id":101809741,"postalcode_id":891074797,"region_id":85687035}],"mz:is_deprecated":0,"geom:area":6.0E-6,"geom:longitude":5.299571,"wof:id":891074797,"geom:type":"Polygon","wof:lastmodified":1469686294,"clustr:alpha":0.05,"wof:belongsto":[85687035,102191581,404474407,85633337,101809741],"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":"5.29365205765,51.5065307617,5.30458068848,51.5121574402","clustr:count":49,"clustr:area":59.15,"clustr:density":0.83,"wof:superseded_by":[],"wof:supersedes":[],"wof:geomhash":"32d90e3ac3406109b254280027447529","wof:parent_id":101809741,"wof:placetype_names":["postalcode"],"mz:hierarchy_label":1,"wof:placetype_id":470996387,"clustr:perimeter":1.94,"edtf:cessation":"uuuu"}