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": ""}
  hI aristida purpurea var. longisea     i4 randall TEXAS r -   Poales 9   f/C3 PURPUREA  Z! 4917  6~mAe United States  & ARISTIDA  , )7 1405735 POACEAE 4    sy  Buffalo Lake National Wildlife efuge  larry c. higgins w      :RU$z 1971-09-19   o LONGISETA   (STEUD.) VASEY -: 
{"catalogNumber": "1405735", "order": "Poales", "family": "Poaceae", "scientificName": "Aristida purpurea var. longiseta", "scientificNameAuthorship": "(Steud.) Vasey", "genus": "Aristida", "subgenus": "", "specificEpithet": "purpurea", "verbatimTaxonRank": "", "infraspecificEpithet": "longiseta", "identifiedBy": "", "recordedBy": "Larry C. Higgins", "recordNumber": "4917", "verbatimEventDate": "1971-09-19", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Texas", "county": "Randall", "municipality": "", "locality": "Buffalo Lake National Wildlife Refuge", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}