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": ""}
1921-08-21 .<   $ W. C. FERGUSON   v=%tX s.n.  9 dichanthelium lindbeimeri    ; (Nash) Gould hempstead reservoir r%zG  1429819 >I s       k>da LINDHEIMERI  f!= United States     GTkkp7 poales        =? POACEAE   K DICHANTHELIUM
{"catalogNumber": "1429819", "order": "Poales", "family": "Poaceae", "scientificName": "Dichanthelium lindheimeri", "scientificNameAuthorship": "(Nash) Gould", "genus": "Dichanthelium", "subgenus": "", "specificEpithet": "lindheimeri", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "W. C. Ferguson", "recordNumber": "s.n.", "verbatimEventDate": "1921-08-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "Hempstead Reservoir", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}