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": ""}
    aristida ~;    S ARISTIDA PURPUREA VAR. PURPUREA    san luis potosi Cy`4     purpurea 1?   MEXICO U    1891-08-01 5]   -99.0223 @_j  Cyrus G. Pringle SrDN       
{"catalogNumber": "", "order": "", "family": "", "scientificName": "Aristida purpurea var. purpurea", "scientificNameAuthorship": "", "genus": "Aristida", "subgenus": "", "specificEpithet": "", "verbatimTaxonRank": "", "infraspecificEpithet": "purpurea", "identifiedBy": "", "recordedBy": "Cyrus G. Pringle", "recordNumber": "", "verbatimEventDate": "1891-08-01", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Mexico", "stateProvince": "San Luis Potosi", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "-99.0223", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}