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": ""}
   POTENTILLA t/,4R    michigan [7    e=?Oa George B. Sudworth  washtenaw :C  1467727 &p(;    209 R&!E   ann arbor uAIB   .Y ROSALES   -83.726329  l `V  "10-18'; yel." nCkT       eO@o NORVEGICA  
{"catalogNumber": "1467727", "order": "Rosales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "Potentilla", "subgenus": "", "specificEpithet": "norvegica", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George B. Sudworth", "recordNumber": "209", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "\"10-18'; yel.\"", "associatedTaxa": "", "country": "", "stateProvince": "Michigan", "county": "Washtenaw", "municipality": "", "locality": "Ann Arbor", "decimalLatitude": "", "decimalLongitude": "-83.726329", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}