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": ""}
poaceae a    ~Yy f oligantha United S7ates gNgV   @|OUC Michx. little river P6K        183 $b    doB X ARKANSAS   Y% 9063   aristida A    Qb8B LEROY H. HARVEY & JOHN T. WITHERSPOON   1405576  $z    kW POALES   
{"catalogNumber": "1405576", "order": "Poales", "family": "Poaceae", "scientificName": "", "scientificNameAuthorship": "Michx.", "genus": "Aristida", "subgenus": "", "specificEpithet": "oligantha", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "LeRoy H. Harvey & John T. Witherspoon", "recordNumber": "9063", "verbatimEventDate": "", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Arkansas", "county": "Little River", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "183", "maximumElevationInMeters": ""}