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": ""}
   KN- UNITED STATES    =x s.n.  / RUTH E. HOPSON          1944-04-07 M?L[U    =6 3 Calypso bulbosa var. occidentalis   n,] bulbosa  hBbH OCCIDENTALIS 1647698 =8mj      
{"catalogNumber": "1647698", "order": "", "family": "", "scientificName": "Calypso bulbosa var. occidentalis", "scientificNameAuthorship": "", "genus": "", "subgenus": "", "specificEpithet": "bulbosa", "verbatimTaxonRank": "", "infraspecificEpithet": "occidentalis", "identifiedBy": "", "recordedBy": "Ruth E. Hopson", "recordNumber": "s.n.", "verbatimEventDate": "1944-04-07", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "United States", "stateProvince": "", "county": "", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}