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": ""}
  Hr L.   Ad6 903  H=cpF CARL O. GRASSL United States @   r KEWEENAW 1468508 qT$    FI ROSACEAE   z2U$C Michigan prunus virginiana k<   -88.84917  Vr N    p#2.G v|rginiana Isle Royale. Paul I (outer) nx B  ON BEACH RIDE.  0   S .e* Prunus   p9r ROSALES   47.91444 ithxu    1931-n08-24 l(gw_ 
{"catalogNumber": "1468508", "order": "Rosales", "family": "Rosaceae", "scientificName": "Prunus virginiana", "scientificNameAuthorship": "L.", "genus": "Prunus", "subgenus": "", "specificEpithet": "virginiana", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "903", "verbatimEventDate": "1931-08-24", "habitat": "On beach ridge.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Keweenaw", "municipality": "", "locality": "Isle Royale. Paul I (outer)", "decimalLatitude": "47.91444", "decimalLongitude": "-88.84917", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}