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": ""}
laxiflorum 24b   GEORGE W. LETTERMAN       e UMITED STATES   fX7Wx dichantheliu7m  h 1429702 ST. LOUIS 5r|=  Allenton, Missouri  aRH         ;g poaceae     )6B ] DdICHANTHELIUM LAXIFLORUM 1883-05-30 )c     E0 missouri  (lam.) gould p@j 
{"catalogNumber": "1429702", "order": "", "family": "Poaceae", "scientificName": "Dichanthelium laxiflorum", "scientificNameAuthorship": "(Lam.) Gould", "genus": "Dichanthelium", "subgenus": "", "specificEpithet": "laxiflorum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "George W. Letterman", "recordNumber": "", "verbatimEventDate": "1883-05-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "Missouri", "county": "St. Louis", "municipality": "", "locality": "Allenton, Missouri", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}