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": ""}
E.U. CLOVER K saX   ARISTIDA PURPUREA VAR. NEALLEYI 8 _       4200 g   vLX+@ 1405875 Poales 6 #eX   ARIZONA iKm k     ppD 1939-07-25    . @ NEALLEYI Poaceae 9  -)   o-J7 AT THE MOUTH OF SEPARATIO-N CANYON, LAKE MEAD PURPUREA +  (vasey) allred Xxq[B  MOHAVE =z    aristida )0  
{"catalogNumber": "1405875", "order": "Poales", "family": "Poaceae", "scientificName": "Aristida purpurea var. nealleyi", "scientificNameAuthorship": "(Vasey) Allred", "genus": "Aristida", "subgenus": "", "specificEpithet": "purpurea", "verbatimTaxonRank": "", "infraspecificEpithet": "nealleyi", "identifiedBy": "", "recordedBy": "E.U. Clover", "recordNumber": "4200", "verbatimEventDate": "1939-07-25", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "", "stateProvince": "Arizona", "county": "Mohave", "municipality": "", "locality": "At the mouth of Separation Canyon, Lake Mead", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}