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": ""}
  >C DINWIDDIE    VkIRGINIA        3Z Chasanthium poaceae       H Chasmanthium laxum   ]ayq UNITED STATES  Poales 8S  1939-08-17  f Kd     LYMAN B. SMITH j yFr   plantae exsiccatae grayanae [anonymous, pl. exs. grayan.], 1 - 1500 or more, anonymous, exs #: 908 ~  S.N. C     f4z laxum
{"catalogNumber": "", "order": "Poales", "family": "Poaceae", "scientificName": "Chasmanthium laxum", "scientificNameAuthorship": "", "genus": "Chasmanthium", "subgenus": "", "specificEpithet": "laxum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Lyman B. Smith", "recordNumber": "s.n.", "verbatimEventDate": "1939-08-17", "habitat": "", "occurrenceRemarks": "Plantae exsiccatae Grayanae [Anonymous, Pl. Exs. Grayan.], 1 - 1500 or more, Anonymous, exs #: 908", "associatedTaxa": "", "country": "United States", "stateProvince": "Virginia", "county": "Dinwiddie", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}