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": ""}
      I humilis   N.iv canada    1455932  _)h 18692  ^DL$- Salix humilis Contact UM Herbarium hjQ    @mg, Marsphall  4HWfj salicaceae  Salix 1?cI  1979-06-14 X     J Malpighiales ONTARIO s  Thunder Bay s6      
{"catalogNumber": "1455932", "order": "Malpighiales", "family": "Salicaceae", "scientificName": "Salix humilis", "scientificNameAuthorship": "Marshall", "genus": "Salix", "subgenus": "", "specificEpithet": "humilis", "verbatimTaxonRank": "", "infraspecificEpithet": "", "identifiedBy": "", "recordedBy": "", "recordNumber": "18692", "verbatimEventDate": "1979-06-14", "habitat": "", "occurrenceRemarks": "", "associatedTaxa": "", "country": "Canada", "stateProvince": "Ontario", "county": "Thunder Bay", "municipality": "", "locality": "Contact UM Herbarium", "decimalLatitude": "", "decimalLongitude": "", "verbatimCoordinates": "", "minimumElevationInMeters": "", "maximumElevationInMeters": ""}