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": ""}
        ku   1968-07-18  25919 |$-T    c7wT g.c. rzedowski   19.5549 M/`    rosaceae +VCU     _@R] ROSALES  CK POTENTLLA RUBRA  L!W  -99.4163  P Isidro Fabela   Uo XY POTENTILLA  
{"catalogNumber": "", "order": "Rosales", "family": "Rosaceae", "scientificName": "Potentilla rubra", "scientificNameAuthorship": "", "genus": "Potentilla", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "G.C. Rzedowski", "recordedBy": "", "recordNumber": "25919", "verbatimEventDate": "1968-07-18", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "", "county": "Isidro Fabela", "municipality": "", "locality": "", "decimalLatitude": "19.5549", "decimalLongitude": "-99.4163", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}