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": ""}
  1945-10-21 j!q  RYUKYU !Wz  ANDERSSON L   f~QS6 942    Kn okinawa, neruna Miscanthus :[ks      poaceae $   z-5 japan 1708592 Zu   sinensis t=t   MISCANTHUS SINENSIS  CF*       
{"catalogNumber": "1708592", "order": "", "family": "Poaceae", "scientificName": "Miscanthus sinensis", "scientificNameAuthorship": "Andersson", "genus": "Miscanthus", "subgenus": "", "specificEpithet": "sinensis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "942", "verbatimEventDate": "1945-10-21", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Japan", "stateProvince": "Ryukyu", "county": "", "municipality": "", "locality": "Okinawa, Neruna", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}