Refactor the unstructured text into a valid JSON dictionary. The key names follow the Darwin Core Archive Standard. If a key lacks content, then insert an empty string. Fill in the following JSON structure as required: {"catalogNumber": "", "order": "", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}
43.02103 &       V NORVEGICA  1450 I.E       & Kent  i ROSACEAE  XE SANDY AREA.  michigan UExuf   ROSALES vr7J   147650 Ts >   N potentilla norvegica 1940-07-08 #^    y%yE Potentilla  + united states  
{"catalogNumber": "1467650", "order": "Rosales", "family": "Rosaceae", "scientificName": "Potentilla norvegica", "scientificNameAuthorship": "", "genus": "Potentilla", "subgenus": "", "specificEpithet": "norvegica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "1450", "verbatimEventDate": "1940-07-08", "habitat": "Sandy area.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Kent", "municipality": "", "locality": "", "decimalLatitude": "43.02103", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}