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": ""}
 a@V 1948-05-30    ARTON H. WARNOCK _J  Texas D;U    + purpurea (Steud.) Vasey F4_6_   ]<c& Hudspeth   aristida purpurea var. lon,giseta Gm2   #cp 7781 var. 50)aX  Aristida E H   n# longiseta  ALONG HIGHWAY; 5 MILES EAST OF SIERRA BLANCA |   united states G^Z|P    POACEAE +Q  1372 /n8hr   , poales 
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Aristida purpurea var. longiseta", "scientificNameAuthorship": "(Steud.) Vasey", "genus": "Aristida", "subgenus": "", "specificEpithet": "purpurea", "verbatimTaxonRank": "var.", "infraspecificEpithet": "longiseta", "identifiedBy": "", "recordedBy": "Barton H. Warnock", "recordNumber": "7781", "verbatimEventDate": "1948-05-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Hudspeth", "municipality": "", "locality": "Along highway; 5 miles east of Sierra Blanca", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "1372", "maximumElevationInMeters": ""}