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": ""}
    + (Steud.) Vas7ey   Texas X907C    r:G longiseta   xw9i POALES  y]~FJ 1405769    DlBs Aristida purpurea var. longiseta unitedstates Y.^~      /p leroy h. harvey 91 LMy     ; 2 miles SW of Benavides 1939-06-15 */d    <u 891  X Aristida poaceae  F~    I. duval  gLz var.  [ PURPUREA 
{"catalogNumber": "1405769", "order": "Poales", "family": "Poaceae", "scientificName": "Aristida purpurea var. longiseta", "scientificNameAuthorship": "(Steud.) Vasey", "genus": "Aristida", "subgenus": "", "specificEpithet": "purpurea", "verbatimTaxonRank": "var.", "infraspecificEpithet": "longiseta", "identifiedBy": "", "recordedBy": "LeRoy H. Harvey", "recordNumber": "891", "verbatimEventDate": "1939-06-15", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Duval", "municipality": "", "locality": "2 miles SW of Benavides", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "91", "maximumElevationInMeters": ""}