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": ""}
  D:5 POTAMOGETONACEAE CARL O. GRASL v5   Keweenaw vl     6245      1280873 L*|N   v var.   I michigan    s  A 1931-08-20  2 48.041963 united states  4kg  - >H -88.766296  y POTAMOGETON GRAMINEUS VAR. GRAMINEUS       B1s POTAMOGETON
{"catalogNumber": "1280873", "order": "", "family": "Potamogetonaceae", "scientificName": "Potamogeton gramineus var. gramineus", "scientificNameAuthorship": "", "genus": "Potamogeton", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "var.", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Carl O. Grassl", "recordNumber": "6245", "verbatimEventDate": "1931-08-20", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Keweenaw", "municipality": "", "locality": "", "decimalLatitude": "48.041963", "decimalLongitude": "-88.766296", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}