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": ""}
 - 7921     6 silene drummondii subsp. drummondii    |qFN Caryophyllaceae   x[$V drummondii      ,j  contact um herbarium United States W_I      1938-08-12    C`C? subsp.  Wnevada fTm/     wP DRUMMONDII  Lk-_ 1196617  #-)R CLARK 
{"catalogNumber": "1196617", "order": "", "family": "Caryophyllaceae", "scientificName": "Silene drummondii subsp. drummondii", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "drummondii", "verbatimTaxonRank": "subsp.", "infraspecificEpithet": "drummondii", "identifiedBy": "", "recordedBy": "", "recordNumber": "7921", "verbatimEventDate": "1938-08-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Nevada", "county": "Clark", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}