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": ""}
   1943-05-22 ; @:3  7271 =~T[3   Namaceae TV    HISPIDUM PO   2jt VAR.    x>?7D CONTACT UM HERBARIUM   8Z/q` BORAGINALES    #;7 Dr. W.L.Toltead  V: NAMA HISPIDUM VAR. HSPIDUM  -U E united states  I hispidum   QC$ V Texas  c  nama  1203170 8 
{"catalogNumber": "1203170", "order": "Boraginales", "family": "Namaceae", "scientificName": "Nama hispidum var. hispidum", "scientificNameAuthorship": "", "genus": "Nama", "subgenus": "", "specificEpithet": "hispidum", "verbatimTaxonRank": "var.", "infraspecificEpithet": "hispidum", "identifiedBy": "", "recordedBy": "Dr. W.L.Tolstead", "recordNumber": "7271", "verbatimEventDate": "1943-05-22", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}