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": ""}
SALIX tHB   / 1947-09-16       p planifolia  NUNAVUT [4|nm  canada Uo    c Salicaceae    rR 1457146  ka Q& Francis Harper      gN 2502    ) 6W Kivalliq  SALIX PLANIFOLIA @ |1? 
{"catalogNumber": "1457146", "order": "", "family": "Salicaceae", "scientificName": "Salix planifolia", "scientificNameAuthorship": "", "genus": "Salix", "subgenus": "", "specificEpithet": "planifolia", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "Francis Harper", "recordNumber": "2502", "verbatimEventDate": "1947-09-16", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Nunavut", "county": "Kivalliq", "municipality": "", "locality": "", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}