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": ""}
    S erectus      R7$z ARECALES  94 _c calamus   7/ 1002795  g Walter N. Koelz  Wy y42 1`95Y1-04-30    *+F P Laikul, 4000 ft. Roxb. ,?)    CA India    27781 es`.A   !%) Cachar  t]*6 CALAMUS ERECTUS  P6UnT assam
{"catalogNumber": "1002795", "order": "Arecales", "family": "", "scientificName": "Calamus erectus", "scientificNameAuthorship": "Roxb.", "genus": "Calamus", "subgenus": "", "specificEpithet": "erectus", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Walter N. Koelz", "recordNumber": "27781", "verbatimEventDate": "1951-04-30", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "India", "stateProvince": "Assam", "county": "Cachar", "municipality": "", "locality": "Laikul, 4000 ft.", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}