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": ""}
  iV*& (LA LLAVE) HEISER   hu g~ Schkuhria pinnata var. virgata   3cT8 19593-11-03    ~_ Road to Calvillo, 21 miles west of Aguascanlientes  VAR.  1F~     tlm3Q Calvillo  0B= VIRGATA  pinnata bkd=     p:; Schkuhria  Aguascalientes zn  MEXICO ?*       g]d 21.9045
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Schkuhria pinnata var. virgata", "scientificNameAuthorship": "(La Llave) Heiser", "genus": "Schkuhria", "subgenus": "", "specificEpithet": "pinnata", "verbatimTaxonRank": "var.", "infraspecificEpithet": "virgata", "identifiedBy": "", "recordedBy": "", "recordNumber": "", "verbatimEventDate": "1959-11-03", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "Aguascalientes", "county": "Calvillo", "municipality": "", "locality": "Road to Calvillo, 21 miles west of Aguascalientes", "decimalLatitude": "21.9045", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}