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": ""}
1949-06-04 ^^Y  edward g. voss k]Nbc  SALIX NIGRA v%x<   ` xk1 malpighiales    *9 -84.747713 MACKINAC  A2a  Salicaceae Gyg r    United States kwl    NIGRA Bs  1475792 ]oM5   565 b   L salix  y, Michigan  8 damp sandy ground. [ABNORMAL, EITER HEAVILY SHADED OR PREVIOUSLY PARTY BURIED --CRB] ]x]vi  MARSHALL fQ   X:X 45.83549 Green Island, off Pt. La Barbe. f   
{"catalogNumber": "1475792", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix nigra", "scientificNameAuthorship": "Marshall", "genus": "Salix", "subgenus": "", "specificEpithet": "nigra", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Edward G. Voss", "recordNumber": "565", "verbatimEventDate": "1949-06-04", "habitat": "Damp sandy ground.", "occurrenceRemarks": "[abnormal, either heavily shaded or previously partly buried --CRB]", "associatedTaxa": "", "country": "United States", "stateProvince": "Michigan", "county": "Mackinac", "municipality": "", "locality": "Green Island, off Pt. La Barbe.", "decimalLatitude": "45.83549", "decimalLongitude": "-84.747713", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}