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": ""}
  5! D.H. Nicolson    5J[lb alismatales     vb (WALL.) SCHOTT   w+ BAGMATI ZONE, OUTH OF GOSSAINKUNDE, BLUMCHE  Nepal y  1664360 ana    arisaema oACvJ   b 2400   m  ! 3336  Bagmati R   TORTUOSUM >z   WD=c 1967-05-2  Ny?x$ no data  Dan H. Nicolson : 
{"catalogNumber": "1664360", "order": "Alismatales", "family": "", "scientificName": "", "scientificNameAuthorship": "(Wall.) Schott", "genus": "Arisaema", "subgenus": "", "specificEpithet": "tortuosum", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "Dan H. Nicolson", "recordedBy": "D.H. Nicolson", "recordNumber": "3336", "verbatimEventDate": "1967-05-12", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Nepal", "stateProvince": "Bagmati", "county": "no data", "municipality": "", "locality": "Bagmati Zone, South of Gossainkunde, Blumche", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "2400", "maximumElevationInMeters": ""}