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": ""}
     1948-02-07 nRl   4u/ 2 ROBERT J. RODIN  aD@ L 1703538         poales ,U7    .w  uniplumis     ; 4w very dry sand-veld. open tree-veld with low acacia trees, many grasses, a few xerophytic shrubs.  -u no data  3586 v|  
{"catalogNumber": "1703538", "order": "Poales", "family": "", "scientificName": "", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "uniplumis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Robert J. Rodin", "recordNumber": "3586", "verbatimEventDate": "1948-02-07", "habitat": "Very dry sand-veld. Open tree-veld with low Acacia trees, many grasses, a few xerophytic shrubs.", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "no data", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}